Aarushhh/wikipedia-simple-splitted huggingface dataset:
Sub-National 
 List of state legislatures of the United States — United States
 General Assembly / Assembly
 Great and General Court / General Court
 House of Delegates
 Landtag — Germany, Austria
 Canada
 Legislative Assembly — All provinces and territories except:
 National Assembly — Quebec
 House of Assembly — Nova Scotia and Newfoundland and Labrador
 Australia
 Legislative Assembly - All States and Territories except:
 House of Assembly - South Australia and Tasmania
 Legislative Council - All States except Queensland
 United Kingdom
 Scottish Parliament — Scotland
 Northern Ireland Assembly — Northern Ireland
 National Assembly for Wales — Wales
Houses of Parliament — United Kingdom overall.
Linear algebra is a branch of mathematics. It came from mathematicians trying to solve systems of linear equations. Vectors and matrices are used to solve these systems. The main objects of study currently are vector spaces and linear mappings between vector spaces. Linear algebra is useful in other branches of mathematics (e.g. differential equations and analytic geometry). It can also be applied to the real world in areas such as engineering, physics and economics.

Linear algebra describes ways to solve and manipulate (rearrange) systems of linear equations.

For example, consider the following equations:

These two equations form a system of linear equations.
It is linear because none of the variables are raised to a power.
The graph of a linear equation in two variables is a straight line.
The solution to this system is:
This is because it makes all of the original equations valid, that is, the value on the left side of the equals sign is exactly the same as the value on the right side for both equations.

Linear algebra uses a system of notation for describing system behavior, called a matrix. For the previous example, the coefficients of the equations can be stored in a coefficient matrix.

Related pages

 Abstract algebra
 Matrix analysis
 Matrix function
 Numerical linear algebra
 System of linear equations

Further reading
 Israel Gelfand (1998), Lectures on linear algebra, Courier Dover Publications.

Linear algebra
London is the capital of the United Kingdom (UK), and its largest city. It is also the city with the highest population in the UK. The population is just under 9 million. The city is the largest in western Europe by population and area.

On the Thames, London has been a central city since it was founded by the Romans two millennia ago as Londinium. The Romans bridged the river Thames and built a road network to connect Londinium with the rest of the country.

London's original city centre, the City of London is England's smallest city. In 2011 it had 7,375 inhabitants on an area of 1.12 square miles. The term "London" is used for the urban region which developed around this city centre. This area forms the region of London, the Greater London administrative unit led by the Mayor of London and the London Assembly.
London is one of the world's most important political, economic and cultural centres. London was the capital of the British Empire and so for almost three centuries the centre of power for large parts of the world.

The city has about 9.1 million inhabitants (2018). If one counts the entire metropolitan area of London (London Metropolitan Area), it has about 15 million people. The climate is moderate.

History 
The Romans built the city of Londinium along the River Thames in AD 43. The name Londinium (and later 'London') came from the Celtic language of the Ancient Britons. In AD 61, the city was attacked and destroyed. Then the Romans rebuilt the city, and London became an important trading hub.
5th century: end of Roman rule to 12th century 
After the decline of the Roman Empire, few people remained in London. The Anglo-Saxon people of sub-Roman Britain were mainly agricultural. Once the Romans had gone, trade with Continental Europe dwindled. In the 9th century, more people started living in London again. It became the largest city in England. However, it did not become the capital city of England again until the 12th century. For a long time after the Romans, England was not unified, and so had no capital.

15th/16th century 
Trade grew and the East India Company was founded as a monopoly trader. Trade expanded to the New World. London became the main North Sea port, and migrants went from England and abroad. The population rose from about 50,000 in 1530 to about 225,000 in 1605.

17th century 
The 17th century saw Londoners suffer from the plague and the fire of London. The century starts with the famous Gunpowder Plot.
In the 17th century the Stuart kings ruled: James I and Charles I. Charles Stuart was defeated by Cromwell, so the century was remarkable in that respect. Cromwell marks the beginning of the modern system whereby Parliament is more important than the monarch. The war between Cromwell and Charles was bitterly fought. London was the key city, and Oxford was also important.

The century also had two great disasters: the Great Plague and the Great Fire of London. The control of London by Cromwell and Parliament was one of the decisive factors in the civil war. Cromwell's victory was followed by his death in 1658, and the country for a time moved back to royal rule under Charles II.

The plague virus, carried by fleas on rats, came to Britain from Europe.
The Great Fire of London broke out at the beginning of September 1666. Unfortunately there were warehouses full of timber, pitch, tallow, wine and tar. These caught fire and, in the end, all the riverfront buildings were destroyed. The fire eventually destroyed about 60% of the city, (mainly the City of London, rather than the large city we have today). Old St Paul's Cathedral was destroyed. Some fires burnt more widely, up to present-day Southwark and even Highgate (which are not in the city, but are in London).

Modern era 
Another famous old part of Greater London is Westminster, which was a different city from the City of London. In Westminster is Westminster Abbey (a cathedral), the Palace of Westminster (the Houses of Parliament, and 10 Downing Street (where the Prime Minister lives).

After the railways were built, London grew much larger. Greater London has 33 boroughs (neighbourhoods) and a mayor. The old City of London is only a square mile in size but has its own Lord Mayor.
Expansion of London 
In stages, London has several times increased in size by statute in Parliament. The main motive for this has been taxation, and the increase in houses in what was once countryside. Since taxation was paid to the counties surrounding London, there was a motive for absorbing the countryside into London. This happened in several stages. 

Outside London, local taxes are paid to the County Councils; inside London they are paid to the Greater London Council. One county has been lost entirely (Middlesex) and all the others have lost land and revenue. The London Boroughs and the GLA (Greater London Authority) both raise taxes, and the representatives are elected. There is a London Plan which sets out the priorities. The number of local authorities which raise local taxes and spend it is 33: 32 London boroughs and the City of London.
Geology 
One aspect of its geology had big consequences. North of the Thames London is on chalk, which is easy (with modern equipment) to tunnel through. South of the Thames London is on clay, which was, and still is, much more difficult to dig out. So most of the subterranean engineering is north of the Thames. The road system south of the Thames is also inadequate by modern standards. This difference is reflected in the prices for property, the road transport, the Underground railway and the definition of "London" as a taxable area. The growth of London has been more vigorous North of the Thames, and has included the complete absorption of Middlesex, once a separate county.
Events 
 AD 43  Londinium is founded by the Romans.
 61 – Londinium is sacked by Queen Boudica and the Iceni.
 100 – Londinium becomes the capital of Roman Britain.
 200 – The population is about 6,000.
 410 – the end of Roman rule in Britain
 8th century – London is captured by Vikings.
 885 – King Alfred the Great recaptures the city and makes peace with the Viking leader Guthrum.
 1045/50 – Westminster Abbey is rebuilt by Edward the Confessor who is buried there in January 1066.
 1066 – William the Conqueror is crowned in Westminster Abbey.
 1100 – The population is about 16,000.
 1300 – The population of London has risen to 100,000.
 1381 – the Peasants' Revolt – the first poll tax riots
 1605 – The Gunpowder Plot is stopped.
 1642 – The English Civil War starts.
 1647 – London supports Cromwell's army.
 1665 – the Great Plague of London
 1666 – the Great Fire of London
 1700s – the Georgian era (the time of George III)
 1780 – the Gordon Riots
 1900s – Canals, railways, bridges. British Empire.
1851 – The Great Exhibition is held at the Crystal Palace.
 1908 – The Olympic Games take place in London.
 1940/1941 – London was bombed by German planes during World War II: explosive and incendiary bombs. This was known as The Blitz.
 1944/45 – London bombed by V-1 flying bomb and later the V2 rockets.
 1948 – The Summer Olympic Games take place in London for the second time.
 1966 – The Football World Cup final took place in London. It was won by England.
 1990 – the Second Poll Tax Riots
 2005 – The 7 July bombings on the London Underground and a bus. 52 people die and over 700 people are injured.
 2012 – The Summer Olympic Games take place in London for a third time.
2017 – There were two terrorist attacks. The first happened in March on Westminster Bridge and Parliament Square. Five people were killed outside the Palace of Westminster, including the attacker and a police officer. 40 more people were injured. Another attack happened on London Bridge in June. Seven people were killed before the Metropolitan Police shot down the three attackers near Borough Market. The Islamic State has said they were responsible for both attacks.
2020 – COVID-19 did not affect London much until the Spring of 2020. From then until mid 2022, every aspect of life was affected. Government regulation of private life was almost unknown except in wartime (WWII). Many aspects of consumer activity have taken time to recover. Education of young people was interrupted, shops closed and all forms of live mass entertainment were banned.
Landmarks 

 Big Ben (Elizabeth Tower)
 Buckingham Palace
 Millennium Dome
 London Eye
 Nelson's Column in Trafalgar Square
 Tower Bridge
 London Underground
 Natural History Museum
 St. Paul's Cathedral
 Palace of Westminster
 The Shard
 Alexandra Palace
 Tower of London

Business and economy 
London has five major business districts: the City, Westminster, Canary Wharf, Camden & Islington and Lambeth & Southwark.

The London Stock Exchange is the most international stock exchange and the largest in Europe.

Financial services 
London's largest industry is finance. This includes banks, stock exchanges, investment companies and insurance companies The Bank of England is in the City of London and is the second oldest bank in the world.

Professional services 
London has many professional services such as law and accounting firms.

Media 
The British Broadcasting Company (BBC), which has many radio and TV stations, is in London.
Tourism 
Tourism is one of London's biggest industries. London is the most visited city in the world by international tourists with 18.8 million international visitors per year. Within the UK, London is home to the ten most-visited tourist attractions. Tourism employed about 350,000 full-time workers in London in 2003. Tourists spend about £15 billion per year.

Technology 
A growing number of technology companies are based in London.

Retail 
London is a major retail centre, and in 2010 had the highest non-food retail sales of any city in the world, with a total spend of around £64.2 billion. The UK's fashion industry, centred on London, contributes tens of billions to the economy.
Manufacturing and construction 
For the 19th and much of the 20th centuries London was a major manufacturing centre (see Manufacturing in London), with over 1.5 million industrial workers in 1960. Many products were made in London including ships, electronics and cars. Nowadays, most of these manufacturing companies are closed but some drug companies still make medicine in London.

Transportation (trains, airports and underground) 
The city has a huge network of transport systems including trains, underground (metro) and five main airports.

The Victorians built many train systems in the mid-19th century (1850s). Their main stations are in London, and the lines go to every part of Great Britain. There were originally five major companies but the five companies became a national rail network in modern times. Their terminals at King's Cross, St. Pancras, Paddington, Waterloo and Charing Cross are still used as terminals.
There are five airports, though only one is actually in London (London City Airport). The most used airport is Heathrow Airport, although it is actually outside the city. There is the London end of the LondonBirmingham canal, which was important to the industrial 19th century. Really heavy goods can be transported on water by canal or sea.

The London Underground is a system of electric trains which are in London. It is the oldest underground railway in the world. It started running in 1863 as the Metropolitan Railway. Later, the system was copied in other cities, for example Paris, New York, Moscow and Madrid. Even though it is called the London Underground, about half of it is above the ground. The "Tube" is the name used for the London Underground, because the tunnels for some of the lines are semi-round tubes running through the ground. The Underground has 274 stations and over 250 miles (402 km) of track. Over one billion passengers used the underground each year.
With the need for more rail capacity in London, the Elizabeth Line (also known as Crossrail) opened in May 2022. It is a new railway line running east to west through London, with a branch to Heathrow Airport. It is Europe's biggest construction project, with a £15 billion projected cost.

There is a black taxi system regulated by the Metropolitan Police, and various other private enterprise hire car companies. Efforts are being made to make roads safer for cyclists.

Sewage tunnel 
London's biggest tunnel has just been completed to take sewage from the capital to the East where it will be processed.

Climate 
London has a temperate oceanic climate (Köppen climate classification: Cfb). It is not usually very hot or cold. It is often cloudy. 

Summers are generally warm, sometimes hot. Winters are generally cool. Spring and autumn are mild.
London has regular, light rain throughout the year. July is the warmest month, with an average temperature at Greenwich of 13.6 °C to 22.8 °C. The coldest month is January, with an average of 2.4 °C to 7.9 °C. The average annual precipitation is fairly low at 583.6 mm, and February is normally the driest month. Drought is sometimes possible, especially during longer heatwaves in summer. Snow is uncommon but usually falls at least once each winter and heavy snow is rarer and does not happen every winter. While snow is uncommon in central London itself, there is more snow in the outer areas; this is because the "urban heat island" the big city generates makes the city about 5 °C warmer than surrounding areas in winter.

Temperature extremes in London range from  at Heathrow Airport on 19 July 2022 down to  at Northolt on 1 January 1962.

Twinnings
Twinnings 

London has twin and sister city agreements with these cities:
 Sister cities:
  Berlin, Germany (since 2000)
  New York City, USA (since 2001)
  Moscow, Russia
  Beijing, China (since 2006)
 Partner cities:
  Paris, France (since 2001)
  Rome, Italy

London also has a "partnership" agreement with Tokyo, Japan.

References

Other websites 

 London City Government
 WorldFlicks in London: Photos and interesting places on Google Maps. .
 Events in London

 
Olympic cities
A litre (international spelling) or liter (American spelling) is one of the metric units of volume. It is not a basic SI unit, but it is a supplementary unit.

One litre is the volume of 1000 cubic centimetres, that is a cube of 10 × 10 × 10 centimetres (1000 cm3). One litre of water at  has the mass of exactly one kilogram. This results from the definition given in 1795, where the gram was defined as the weight of one cubic centimetre of melting ice.

Liters are usually utilized to measure the volume of liquids, this is because the density of liquids can vary a lot. However it can be applied to solids as well, for example 1 liter of Iron is around 7.7 kg. The symbol for litre is l or L. The script letter ℓ is also sometimes used.

For smaller volumes, the decilitre is used: 10 dl = one litre.

For smaller volumes, the centilitre is used: 100 cl = one litre.

For smaller volumes, the millilitre is used: 1000 ml = one litre.
The capital letter "L" is preferred by some people as the small "l" can look like the number one "1".
 1 litre = 0.2200 imperial gallons
 1 litre = 0.2642 US gallons
 1 imperial gallon = 4.5461 litres
 1 US gallon = 3.7854 litres
 1 litre = 1 dm3

History
The metric system was first introduced in France in 1791. That system did not have its own unit of capacity or volume because volume can be measured in cubic metres. In 1793 work to make the metric system compulsory in France was started by the Temporary Commission of Republican Weights and Measures. Due to public demand, the commission said that the cubic metre was too big for everyday use. They said that a new unit based on the old cadil should be used instead. One cadil was to be 0.001 cubic metres. This was equivalent to a cube with sides 10 cm. The cadil was also known as the pinte or the litron. The pinte had been an old French unit of measure of capacity. In 1795 the definition was revised. The cadil was given the name litre.
In 1795 the kilogram was defined to be exactly one litre of water at 4 °C. In 1799 the kilogram was redefined. The new definition said that the kilogram was the mass of the kilogram des archives. In 1901 scientists measured the volume of one litre of water at 4 °C very carefully. They found that it occupied about  dm3. The BIPM redefined the litre as being exactly the volume of one kilogram of water at 4 °C.

In 1960 the SI was introduced. The BIPM changed the definition of the litre back to "one dm3". The litre is not part of SI. The BIPM defined the litre as a "Non-SI unit accepted for use with the SI". This was because it is used in many countries. The BIPM said that the litre should not be used for very accurate work.
According to SI rules, the symbol for the litre should be "l". This is because the litre was not named after somebody whose name was "Litre". However the symbol "l" and the number "1" are easily confused. In 1979 the BIPM made an exception for the symbol for the litre. They said that people could use either "L" or "l" as its symbol.

In Europe, milk is sold in one litre cartons. One litre bottle is also a popular package for soft drinks. Most alcoholic drinks are sold as 1/3 litre (0.33 l),  litre (0.5 l) or 3/4 litre (0.75 l) bottles.

Notes

References

Units of volume
Lime is a green fruit, and the tree fruit itself. They are citrus fruits similar to lemons. Citrus fruits like limes are rich in vitamin C. Sailors from Britain were given lemon or lime juice to stop them falling ill with scurvy. This is how they got the nickname Limey. There are several citrus trees whose fruits are called limes. They include the key lime Citrus aurantiifolia, the Persian lime, the kaffir lime, and the desert lime Citrus glauca.

Limes are small, round and bright green. If they stay on the tree for a long time they turn yellow. Then they look like small round lemons.

Lime juice is used in cooking and in drinks. Lime oils are often used in perfumes, used for cleaning, and used for aromatherapy.

Lime tastes acidic and bitter. Lime juice is also made from limes.
Different kinds of limes 
 Persian lime – This lime is most often sold in supermarkets as lime.
 Key lime – Smaller than the Persian lime, used to mix Cocktails and make pies.
 Kaffir lime – Very small fruits, vegetable oil from the leaves is used for perfumes, leaves are used for cooking.

Other websites 
 http://aggie-horticulture.tamu.edu/citrus/limes.htm

Citrus
Mathematics is the study of numbers, shapes, and patterns. The word comes from the Greek μάθημα (máthema), meaning "science, knowledge, or learning", and is sometimes shortened to math.

It is the study of:
 Numbers: including how things can be counted.
 Structure: including how things are organized, but also how they can be or could have been. This subfield is usually called algebra.
 Place: where things are, and spatial arrangement, including arrangements of spaces themselves. This subfield is usually called geometry.
 Change: how things become different. This subfield is usually called analysis.

Applied math is useful for solving problems in the real world. People working in business, science, engineering, and construction use mathematics.
Problem-solving in mathematics 
Mathematics solves problems by using logic. One of the main tools of logic used by mathematicians is deduction. Deduction is a special way of thinking to discover and prove new truths using old truths. To a mathematician, the reason something is true (called a proof) is just as important as the fact that it is true, and this reason is often found using deduction. Using deduction is what makes mathematical thinking different from other kinds of scientific thinking, which might rely on experiments or on interviews.
Sometimes, mathematics finds and studies rules or ideas that we don't understand yet. Often in mathematics, ideas and rules are chosen because they are considered simple or neat. On the other hand, sometimes these ideas and rules are found in the real world after they are studied in mathematics; this has happened many times in the past. In general, studying the rules and ideas of mathematics can help us understand the world better. Some examples of math problems are addition, subtraction, multiplication, division, calculus, fractions and decimals. Algebra problems are solved by evaluating certain variables. A calculator answers every math problem in the four basic arithmetic operations.

Areas of study in mathematics
Number 
Mathematics includes the study of numbers and quantities. It is a branch of science that deals with the logic of shape, quantity, and arrangement. Most of the areas listed below are studied in many different fields of mathematics, including set theory and mathematical logic. The study of number theory usually focuses more on the structure and behavior of the integers rather than on the actual foundations of numbers themselves, and so is not listed in this given subsection.

{| style="border:1px solid #999; text-align:center;" cellspacing="20"
|  ||  ||  ||  || 
|-
| Natural numbers || Integers || Rational numbers || Real numbers || Complex numbers
|-
||  ||  ||  ||  || 
|-
|| Ordinal numbers || Cardinal numbers || Arithmetic operations || Arithmetic relations || Functions, see also special functions
|}

Structure 
 Structural mathematics studies objects' and constructions' shape and integrity. These are areas of algebra and calculus.
{| style="border:3px solid #999; text-align:center;" cellspacing="30"
|  ||  ||  || || 
|-
| Number theory || Abstract algebra || Linear algebra || Order theory || Graph theory
|}

Shape 
Some areas of mathematics study the shapes of things. Most of these areas are part of the study of geometry.

{| style="border:1px solid #999; text-align:center;" cellspacing="20"
|  ||  ||  ||  || 
|-
| Topology || Geometry || Trigonometry || Differential geometry || Fractal geometry
|}

Change 
Some areas of mathematics study the way things change. Most of these areas are part of the study of analysis.
{| style="border:1px solid #999; text-align:center;" cellspacing="40"
|  ||  || 
|-
| Calculus || Vector calculus || Analysis
|-
||  ||  || 
|-
|| Differential equations || Dynamical systems || Chaos theory
|}

Applied mathematics 
Applied math uses symbolic logic to solve problems in areas like engineering and physics.
Numerical analysis – Optimization – Probability theory – Statistics – Mathematical finance – Game theory – Mathematical physics – Fluid dynamics - Computational algorithms

Famous theorems 
These theorems and conjectures have interested mathematicians and amateurs alike:

Pythagorean theorem – FLT – Goldbach's conjecture – Twin Prime Conjecture – Gödel's incompleteness theorems – Poincaré conjecture – Cantor's diagonal argument – Four color theorem – Zorn's lemma – Euler's Identity – Church-Turing thesis

These theorems and hypotheses have greatly changed mathematics:

Central limit theorem classification theorems of surfaces – Continuum hypothesis – Fourier Theorem – Fundamental theorem of calculus – Fundamental theorem of algebra – Fundamental theorem of arithmetic – Fundamental theorem of projective geometry – Gauss-Bonnet theorem - Kantorovich theorem – P Versus NP – Pythagorean theorem – Riemann hypothesis

These are a few conjectures that have been called "revolutionary":
Beal Conjecture (a generalization of FLT) – Birch and Swinnerton-Dyer Conjecture – Collatz Conjecture – Goldbach's Conjecture –Hodge Conjecture – Poincaré Conjecture

Foundations and methods 

Set theory – Symbolic logic – Model theory – Category theory – Logic – Table of mathematical symbols

History and the world of mathematicians 

History of mathematics – Timeline of mathematics – Mathematicians – Fields Medal – Abel Prize – Millennium Prize Problems (Clay Math Prize) – International Mathematical Union – Mathematics competitions – Lateral thinking – Mathematics and gender

Awards in mathematics 
There is no Nobel Prize in mathematics. Mathematicians can receive the Abel Prize and the Fields Medal for important works.

The Clay Mathematics Institute has said it will give one million dollars to anyone who solves one of the Millennium Prize Problems.

Mathematical tools 
There are many tools used to do math or find answers to math problems.
Older tools
 Abacus
 Napier's bones, Slide rule
 Ruler and Compass
 Mental calculation
 Writing

Newer tools
 Graphing calculators, scientific calculators and more complex computer visual tools
 Programming languages
 Computer algebra systems (listing) and automated matrix analysis
 statistics software (for example SPSS)
 SAS (programming language)
 R (programming language)

References

Related pages
 Timeline of women in mathematics
 American Mathematical Society
 Society for Industrial and Applied Mathematics
 EASIAM
 International Congress on Industrial and Applied Mathematics
 International Congress of Mathematicians
 International Mathematical Olympiad
 Mathematics Genealogy Project
 Mathematics Subject Classification

Other websites 

 Mathematics Citizendium
 

Mathematics
March (Mar.) is the third month of the year in the Gregorian calendar, coming between February and April. It has 31 days. March is named after Mars, the Roman god of war.

March always begins on the same day of the week as November, and additionally, February in common years.  March always ends on the same day of the week as June.

The Month 

In ancient Rome, March was called Martius. It was named after the war god (Mars) and the Romans thought that it was a lucky time to begin a war. Before Julius Caesar's calendar reform, March was the first month of the year in the Roman calendar, as the winter was considered to be a monthless period. It is one of seven months to have 31 days.

March begins on the same day of the week as February in common years and November every year, as each other's first days are exactly 4 weeks (28 days) and 35 weeks (245 days) apart respectively. March ends on the same day of the week as June every year, as each other's last days are exactly 13 weeks (91 days) apart.
In common years, March starts on the same day of the week as June of the previous year, and in leap years, September and December of the previous year. In common years, March finishes on the same day of the week as September of the previous year, and in leap years, April and December of the previous year.

In years immediately before common years, March starts on the same day of the week as August of the following year, and in years immediately before leap years, May of the following year. In years immediately before common years, March finishes on the same day of the week as August and November of the following year, and in years immediately before leap years, May of the following year.

In leap years, the day before March 1 is February 29. This determines the position of each day of the year from there on. As an example, March 1 is usually the 60th day of the year, but in a leap year is the 61st day.
In terms of seasons, March is one of two months to have an equinox (the other is September, its seasonal equivalent in both  hemispheres), with daylight and darkness of roughly the same number of hours, halfway between the December and June solstices. In the Northern Hemisphere, spring starts in this month, while it is autumn in the Southern Hemisphere.

Start of the season 

The official start of either season is March 1, though the equinox can fall on March 20 or 21, occasionally on March 19. The northern spring equinox marks the start of the Iranian New Year and Baha'i New Year. It is from the March 21 date that Easter's date is calculated, on the Sunday after the first full moon in spring, meaning it can fall between March 22 and April 25 in Western Christianity.

Events in March

Fixed events
March 1 - Saint David's Day (Wales)
 March 1 - March 1st Movement Memorial Day (South Korea)
 March 1 - Beer Day (Iceland)
 March 1 - Independence Day (Bosnia and Herzegovina)
 March 2 - Independence Day (Morocco)
 March 2 - Texas Independence Day
 March 2 - jana day (Algeria)
 March 2 - Peasants Day (Burma)
 March 3 - Hinamatsuri, Girls' Day (Japan)
 March 3 - Liberation Day (Bulgaria)
 March 3 - Mother's Day (Georgia)
 March 3 - Sportsmen's Day (Egypt)
 March 3 - Martyrs' Day (Malawi)
 March 4 - Saint Casimir's Day (Poland and Lithuania)
 March 5 - Custom Chief's Day (Vanuatu)
 March 5 - Lei Feng Day (China)
 March 5 - National Tree Planting Day (Iran)
 March 5 - Saint Piran's Day (Cornwall)
 March 6 - Independence Day (Ghana)
 March 6 - Alamo Day (Texas)
 March 6 - Foundation Day (Norfolk Island)
 March 7 - Felicity and Perpetua (Roman Catholicism)
 March 7 - Teachers' Day (Albania)
 March 8 - International Women's Day
 March 9 - Teachers' Day (Lebanon)
March 10 - Tibetan Uprising Day (Supporters of Tibetan Independence)
 March 11 - Re-establishment of Independence (Lithuania)
 March 11 - Moshoeshoe Day (Lesotho)
 March 11 - Johnny Appleseed Day (United States)
 March 12 - National Day of Mauritius
 March 12 - Youth Day (Zambia)
 March 14 - Pi Day
 March 14 - Mother Tongue Day (Estonia)
 March 14 - White Day (Japan and Korea)
 March 15 - The Ides of March, and the assassination of Julius Caesar.
 March 15 - National Day of Hungary
 March 15 - Holiday in Liberia, celebrating its first President, Joseph Jenkins Roberts
 March 15 - Honen Matsuri (Japan)
 March 16 - Saint Urho's Day (Finnish Communities in Canada and the US)
 March 16 - Latvian Legion Day
 March 16 - Day of the Book Smugglers (Lithuania)
 March 17 - Saint Patrick's Day, celebrating Saint Patrick, the patron saint of Ireland
 March 19 - Saint Joseph's Day (Roman Catholicism)
 March 19 - Unity Day (Kashubia, northern Poland)
 March 20/21 - Equinox, northern Spring, southern Autumn
March 20/21 - Iranian New Year
 March 20 - Independence Day (Tunisia)
 March 20 - Francophone Day
 March 21 - Baha'i New Year
 March 21 - Independence Day (Namibia)
 March 21 - Benito Juarez' Birthday (Mexico)
 March 21 - World Poetry Day
 March 21 - Youth Day (Tunisia)
 March 21 - Harmony Day (Australia)
 March 21 - Human Rights Day (South Africa)
 March 21 - World Down syndrome Day
 March 22 - World Water Day
 March 22 - Emancipation Day (Puerto Rico)
 March 22 - Day of the People's Party (Laos)
 March 23 - Republic Day (Pakistan)
 March 23 - Polish-Hungarian Friendship Day
 March 23 - Family Day (South Africa)
 March 24 - World Tuberculosis Day
 March 24 - Day of Remembrance for Truth and Justice (Argentina)
 March 25 - Independence Day (Greece)
 March 25 - Maryland Day
 March 25 - Mother's Day (Slovenia)
 March 25 - Annunciation of the Blessed Virgin Mary (Roman Catholicism), also known as Lady Day, old New Year in some European countries
 March 26 - Independence Day (Bangladesh)
March 26 - Prince Kuhio Day (Hawaii)
 March 26 - Prophet Zoroaster's Birthday (Zoroastrianism)
 March 26 - Day of Democracy (Mali)
 March 28 - Serfs Emancipation Day (Tibet)
 March 28 - Teachers' Day (Czech Republic and Slovakia)
 March 29 - Boganda Day (Central African Republic)
 March 29 - Youth Day (Republic of China)
 March 31 - Cesar Chavez Day (United States)
 March 31 - Freedom Day (Malta)
On a Sunday between March 1 and April 4, Mother's Day is celebrated in the UK.
 Lent and Easter-related observances in Western Christianity.
Shrove Monday - between February 2 and March 8
Shrove Tuesday (Pancake Day) - between February 3 and March 9
Ash Wednesday, start of Lent - between February 4 and March 10
Palm Sunday, start of Holy Week - between March 15 and April 18
Maundy Thursday - between March 19 and April 22
Good Friday - between March 20 and April 23
Easter occurs on a Sunday between March 22 and April 25 (note: In Eastern Christianity, Easter falls between April 4 and May 8).
Easter Monday - between March 23 and April 26
 Jewish Passover coincides with Christian Holy Week, earliest run is March 15 to March 22, latest run is April 18 to April 25.
 Commonwealth Day (second Monday in March)
 Canberra Day (Second Monday in March)
 Daylight Saving Time
Canada and the United States start Daylight Saving Time on the second Sunday in March. Clocks go forward one hour.
European Summer Time begins on the last Sunday in March. Clocks go forward one hour.
 The Winter Paralympics are often held in this month.
 Six Nations - rugby union tournament running from early February to mid-March, competing countries are England, France, Ireland, Italy, Scotland and Wales
 Start of the Formula One motor racing season
Selection of historical events
March 1, 1872 - Yellowstone National Park becomes the world's first national park.
 March 1, 1910 - An avalanche buries a train in northeastern King County, Washington.
 March 1, 1919 - The March 1st Movement begins in Korea.
 March 1, 1936 - The Hoover Dam is completed.
 March 2, 1956 - Morocco declares its independence from France.
 March 3, 1845 - Florida becomes the 27th State of the US.
 March 3, 1925 - The Mount Rushmore monument is founded, starting work on carving four Presidents' faces into the mountain.
 March 5, 1953 - Russian composer Sergei Prokofiev and Soviet leader Joseph Stalin die on the same day as each other.
 March 6, 1788 - The first fleet of convicts arrives at Norfolk Island.
 March 6, 1957 - Ghana becomes independent from the United Kingdom.
 March 7, 1867 - Alexander Graham Bell is granted a patent for the telephone.
 March 7, 1912 - Roald Amundsen announces that his Norwegian expedition successfully reached the South Pole on December 14 of the previous year.
March 8, 1911 - First celebration of International Women's Day.
 March 8, 1918 - The first cases of the deadly Spanish flu virus are reported.
 March 8, 2014 - Malaysia Airlines Flight 370 disappears.
 March 9, 1908 - A five-man team climbs to the top of Mount Erebus in Antarctica.
 March 9, 1959 - The first Barbie dolls are sold.
 March 10, 1906 - A deadly mining disaster in Courrieres, France, kills 1,099 miners.
 March 10, 1957 - Osama bin Laden is born.
 March 10, 1977 - Astronomers discover rings around the planet Uranus.
 March 11, 1985 - Mikhail Gorbachev becomes leader of the Soviet Union.
 March 11, 1990 - Lithuania declares its independence from the Soviet Union.
 March 11, 2004 - Terrorists bomb rush-hour trains in Madrid, killing 191 people.
 March 11, 2011 - The 2011 Sendai earthquake and tsunami disaster kills  many thousands of people in northeastern Japan, after a magnitude 9.1 earthquake, tsunamis, and a nuclear disaster at Fukushima.
 March 12, 1913 - Canberra is officially named.
March 12, 1930 - Mahatma Gandhi begins his Salt March, as part of the movement for Indian independence.
 March 12, 1968 - Mauritius becomes independent.
 March 13, 1781 - William Herschel discovers the planet Uranus.
 March 13, 1881 - Tsar Alexander II of Russia is murdered when a bomb is thrown at his carriage.
 March 13, 2013 - Pope Francis is chosen as Pope. Coming from Argentina, he is the first Latin American Pope.
 March 14, 1879 - Albert Einstein is born.
 March 14, 1883 - Karl Marx dies at the age of 64 years.
 March 14, 2018 - Stephen Hawking dies.
 March 15, 44 BC - Julius Caesar is murdered on the Ides of March.
 March 15, 1820 - At the easternmost tip of the US, Maine becomes the 23rd State.
 March 15, 1848 - Revolution in Pest, Hungary.
 March 15, 2019 - A terrorist shooting occurs in Christchurch, killing 49 Muslims.
 March 17, 1861 - Italy becomes a Kingdom, making Italy a unified state.
 March 17, 1959 - Tenzin Gyatso, 14th Dalai Lama flees to India.
March 17, 1992 - A referendum in South Africa supports the end of Apartheid.
 March 18, 1965 - Aleksei Leonov performs the first spacewalk.
 March 19, 1932 - Sydney Harbour Bridge is opened.
 March 20, 526 - The 526 Antioch earthquake kills around 300,000 people in Syria and southeastern Turkey.
 March 20, 1861 - Mendoza, Argentina is destroyed by an earthquake that kills 6,000 people.
 March 20, 1956 - Tunisia becomes independent.
 March 20, 1995 - The Aum Shinrikyo cult carries out a deadly sarin gas attack on the Tokyo subway.
 March 20, 2003 - Iraq War starts.
 March 21, 1844 - Start of the Baha'i calendar.
 March 21, 1960 - Sharpeville massacre: Police open fire on demonstrators in South Africa, killing 69 people.
 March 21, 1990 - Namibia becomes independent.
 March 21, 2006 - Twitter is founded.
 March 22, 1818 - Most recent occurrence of Easter on its earliest possible date.
 March 22, 1957 - The Arab League is founded.
 March 22, 1997 - Comet Hale-Bopp makes its closest approach to Earth.
March 23, 1956 - Pakistan becomes an Islamic Republic.
 March 24, 1603 - Queen Elizabeth I of England dies aged 69, without children. James VI of Scotland becomes James I of England.
 March 24, 1989 - The Exxon Valdez oil tanker runs aground at Prince William Sound in Alaska, causing a devastating oil spill.
 March 25, 1655 - Christiaan Huygens discovers Saturn's moon Titan.
 March 25, 1821 - Greece declares its independence from the Ottoman Empire.
 March 25, 1957 - The European Economic Community is founded.
 March 26, 1830 - The Book of Mormon is published in Palmyra, New York.
 March 26, 1971 - Bangladesh's war of Independence starts.
 March 26, 1997 - Members of the Heaven's Gate cult commit mass suicide.
 March 27, 1964 - The Good Friday earthquake strikes south-central Alaska.
 March 28, 1939 - Spanish Civil War: Francisco Franco conquers Madrid.
 March 29, 1792 - King Gustav III of Sweden dies as a result of being shot at a masquerade ball.
March 30, 1867 - United States Secretary of State agrees to purchase Alaska from Russia for $7.2 million.
 March 30, 1981 - John Hinckley shoots at Ronald Reagan in an attempt to kill him.
 March 31, 1889 - The Eiffel Tower is opened to the public.
 March 31, 1968 - US President Lyndon B. Johnson announces that he intends not to run for re-election.
 March 31, 1995 - American singer Selena is shot and killed by her former manager and friend of her boutiques, Yolanda Saldivar.
Trivia 

 March's flower is the daffodil.
 March's birthstones are the bloodstone and aquamarine. The meaning of the bloodstone is courage.
 The star signs for March are Pisces (February 20 to March 20) and Aries (March 21 to April 20).
 March is one of two months of the year that begin with an 'M' in the English language (May is the other). Both have an 'A' as their second letter, and they come on either side of April.
 March 1 is the only day in March to start within the first sixth of the calendar year.
 It is less common for Easter to occur in March than in April. Recent occurrences in March were in 2002 (March 31), 2005 (March 27), 2008 (March 23), 2013 (March 31) and 2016 (March 27).
 March is named for Mars, the Roman god of war, and is called "mars" in some languages. This is also where the planet Mars gets its name from.
Other meanings 
 A march is also a type of music, originally written for and performed by marching bands.
 March also refers to a certain way of walking.
 March is also the name of a place in Germany.
 There is an animal known as the March hare.

03
May is the fifth month of the year in the Julian and Gregorian calendars, coming between April and June. It has 31 days. The month of May might have been named for the Roman goddess Maia, or more likely the Roman goddess of fertility Bona Dea, whose festival was held in May.

May never begins or ends on the same day of the week as any other month.

May's flower is the Lily of the Valley. Its birthstone is the emerald. The meaning of the emerald is success in love.

The Month
The Month 

May comes between April and June and is the fifth month of the year in the Gregorian calendar. It is one of the seven months to have 31 days. In the older Roman calendar, May was the third month of the year. It is a spring month in the Northern Hemisphere and an autumn month in the Southern Hemisphere. In each hemisphere, it is the seasonal equivalent of November in the other. May is likely to have been named after the Roman goddess Maia, though there is a theory that May might have its name from the Latin "Maiores", meaning "Seniors". The same theory suggests that June would then be named from "Iuniores", meaning "Juniors".

No other month of any year either begins or ends on the same day of the week as May; this month is the only one that has both of these properties.
In common years, May starts on the same day of the week as August of the previous year, and in leap years, March and November of the previous year. In common years, May finishes on the same day of the week as August and November of the previous year, and in leap years, March and June of the previous year. In leap years and years immediately after that, May starts on the same day of the week as February of the previous year. 

Every year, May both starts and finishes on the same day of the week as January of the following year, as each other's first and last days are exactly 35 weeks (245 days) apart. In years immediately before common years, May starts on the same day of the week as October of the following year, and in years immediately before leap years, April and July of the following year. In years immediately before common years, May finishes on the same day of the week as February and October of the following year, and in years immediately before leap years, July of the following year.
In the Northern Hemisphere, May is in late Spring, and May Day on May 1 and Walpurgis Night, during the night of April 30 to May 1, are symbolic of the transition from winter to summer. In the Southern Hemisphere, it is in autumn, and comes just before the Antarctic winter, when emperor penguins breed there.

Events in May 

Special devotions to the Virgin Mary take place in May.

Fixed Events
May 1 - May Day in many countries.
 May 1 - International Workers' Day
 May 1 - Beltane (neo-Pagan culture)
 May 1 - Lei Day (Hawaii)
 May 1 - Constitution Day in Latvia and the Marshall Islands
 May 2 - Flag Day (Poland)
 May 2 - National Education Day (Indonesia)
 May 2 - Teachers' Day in Iran and Bhutan
 May 3 - Constitution Day (Poland, Lithuania)
 May 3 - Constitution Memorial Day (Japan)
 May 3 - World Press Freedom Day
 May 4 - Unofficial Star Wars Day
 May 4 - International Firefighters' Day
 May 4 - Youth Day in China and Fiji
 May 4 - Greenery Day (Japan)
 May 4 - Remembrance of the Dead (Netherlands)
 May 5 - Children's Day in Japan and South Korea
 May 5 - Cinco de Mayo (Mexico and United States)
 May 5 - Liberation Day in the Netherlands and Denmark
 May 5 - Coronation Day (Thailand)
 May 5 - Europe Day
 May 6 - International No Diet Day
 May 6 - Teacher's Day (Jamaica)
 May 6 - Saint George's Day (Eastern Orthodox countries)
 May 7 - Radio Day in Russia and Bulgaria
May 8 - Victory in Europe Day, marking end of World War II in Europe
 May 8 - International Red Cross and Red Crescent Day
 May 8 - Parents' Day (South Korea)
 May 8 - Harry S. Truman Day (Missouri)
 May 8 - Miguel Hidalgo's Birthday (Mexico)
 May 9 - Victory and Peace Day (Armenia)
 May 9 - Victory Day (former Soviet Union countries), marking end of World War II in Europe
 May 9 - Independence Day (Romania)
 May 10 - Confederate Memorial Day (North Carolina and South Carolina)
 May 10 - Constitution Day (Federated States of Micronesia)
 May 10 - Mother's Day (Mexico, Guatemala, El Salvador)
 May 11 - National Technology Day (India)
 May 11 - Statehood Day (Minnesota)
 May 12 - International Nurses Day, birthday of Florence Nightingale
 May 12 - Johan Vilhelm Snellman Day (Finland)
 May 16 - National Day (South Sudan)
 May 16 - Teachers' Day (Malaysia)
 May 17 - Constitution Day, National Day of Norway
 May 17 - Constitution Day (Nauru)
 May 17 - Liberation Day (Democratic Republic of the Congo)
May 17 - International Day Against Homophobia and Transphobia
 May 17 - Navy Day (Argentina)
 May 17 - National Famine Memorial Day (Ireland)
 May 17 - Galician Literature Day
 May 18 - International Museum Day
 May 18 - Independence Day (Somaliland)
 May 18 - Battle of Las Piedras Day (Uruguay)
 May 19 - Youth and Sports Day (Turkey)
 May 19 - Genocide Memorial Day (Greece)
 May 19 - Ho Chi Minh's Birthday (Vietnam)
 May 19 - Malcolm X Day (United States)
 May 20 - Independence Day (Cuba)
 May 20 - Independence Day (East Timor)
 May 21 - Navy Day (Chile)
 May 21 - Independence Day (Montenegro)
 May 21 - Saint Helena Day
 May 21 - Day of Patriots and the Military (Hungary)
 May 22 - Republic Day (Sri Lanka)
 May 22 - Unity Day (Yemen)
 May 22 - National Sovereignty Day (Haiti)
 May 22 - International Day of Biological Diversity
 May 22 - Harvey Milk Day (California)
 May 23 - Birthday of Guru Amar Das (Sikhism)
 May 23 - Declaration of the Bab (Baha'i faith)
 May 23 - Labour Day (Jamaica)
May 23 - Students' Day (Mexico)
 May 23 - World Turtle Day
 May 24 - Battle of Pichincha Day (Ecuador)
 May 24 - Bermuda Day
 May 24 - Commonwealth Day (Belize)
 May 24 - Independence Day (Eritrea)
 May 24 - Aldersgate Day (Methodism)
 May 24 - National Patriots Day (Quebec)
 May 25 - Africa Day
 May 25 - Geek Pride Day
 May 25 - Independence Day (Jordan)
 May 25 - Liberation Day (Lebanon)
 May 25 - National Day (Argentina)
 May 26 - Independence Day (Georgia)
 May 26 - Independence Day (Guyana)
 May 26 - Crown Prince's Birthday (Denmark)
 May 26 - Mother's Day (Poland)
 May 26 - National Sorry Day (Australia)
 May 28 - Independence Day (Armenia)
 May 28 - Independence Day (Azerbaijan)
 May 28 - Republic Day (Nepal)
 May 28 - Flag Day (Philippines)
 May 28 - Armed Forces Day (Croatia)
 May 30 - Anguilla Day
 May 30 - Canary Islands Day
 May 31 - Anti-Tobacco Day
Moveable and Monthlong Events 
 In the United Kingdom, May Day is May 1, but a public holiday is held on the first Monday in May.
 In the United States, Canada and Australia, Mother's Day is the second Sunday in May.
 In the United States, Memorial Day, a public holiday, is on May 30, but is observed on the last Monday in May.
 Spring Bank Holiday in the United Kingdom, last Monday in May
 Eastern Orthodox Easter, between April 4 and May 8
 Ascension Day (Western Christianity), between April 30 and June 3
 Pentecost, between May 10 and June 13 in Western Christianity and between May 23 and June 26 in Eastern Orthodox Christianity
 Corpus Christi (Western Christianity) between May 21 and June 24
 Victoria Day (Canada), Monday on or before May 24
 Giro d'Italia (Cycling)
 World Snooker Championship, late April, early May
 Monaco Grand Prix, traditionally the most important race of the Formula One season
 French Open (Tennis), late May, early June
 The Eurovision Song Contest is generally held in May