Juggling

Juggling is a physical human skill involving the movement of one or more objects, usually through the air, for entertainment or sport. The most recognizable form of juggling is toss juggling, where the juggler throws objects through the air. Jugglers often refer to the objects they juggle as props. The most common props are balls, beanbags, rings, clubs, and bouncing balls. Some performers use dramatic objects such as chainsaws, knives and fire torches. The term juggling can also refer to other prop-based circus skills such as diabolo, devil sticks, poi, cigar box manipulation, fire-dancing, contact juggling, hooping and hat manipulation.The word juggling derives from the Middle English jogelen to entertain by performing tricks, in turn from the French jongleur and the Old French jogler. There is also the Late Latin form joculare of Latin joculari, meaning to jest. Juggling" has come to mean, colloquially, any activity which requires a constant refocusing of one's attention from an overall goal to multiple subsidiary tasks, for example "Juggling Work and Family", the title of a PBS documentary. This colloquial meaning is similar to the non-computer use of the word multitasking.
==Origins and history==
===Ancient to 20th century===
The earliest record of juggling, a panel from the 15th Beni Hassan tomb of an unknown prince, shows female dancers and acrobats throwing balls. Juggling has been recorded in many early cultures including Egyptian, Chinese, Indian, Greek, Roman, Norse, Aztec (Mexico) and Polynesian civilizations.
In Europe, juggling was an acceptable diversion until the decline of the Roman Empire, after which it fell into disgrace. Throughout the Middle Ages most histories were written by religious clerics who frowned upon the type of performers who juggled, called 'gleemen', accusing them of base morals or even practising witchcraft. Jugglers in this era would only perform in marketplaces, streets, fairs or drinking houses. They would perform short, humorous and bawdy acts and pass a hat or bag among the audience for tips. Some kings' and noblemen’s bards, fools, or jesters would have been able to juggle or perform acrobatics, though their main skills would have been oral (poetry, music, comedy and storytelling).
In 1768 Philip Astley opened the first modern circus. A few years later he employed jugglers to perform acts along with the horse and clown acts. Since then, jugglers have been associated with circuses.
In the 19th century variety and music hall theatres became more popular, and jugglers were in demand to fill time between music acts, performing in front of the curtain while sets were changed. Performers started specializing in juggling, separating it from other kinds of performance such as sword swallowing and magic. The Gentleman Juggler style was established by German jugglers such as Salerno and Kara. Rubber processing developed, and jugglers started using rubber balls. Previously juggling balls were made from balls of twine, stuffed leather bags, wooden spheres or various metals. Solid or inflatable rubber balls meant that bounce juggling was possible. Inflated rubber balls made ball spinning easier and more readily accessible. Soon in North America, vaudeville theatres employed jugglers, often hiring European performers.
===20th Century===
In the early to mid-20th century, variety and vaudeville shows decreased in popularity due to competition from motion picture theatres, radio and television, and juggling suffered as a result. Music and comedy transferred very easily to radio but juggling could not. In the early years of TV, when variety-style programming was popular, jugglers were often featured. But developing a new act for each new show, week after week, was more difficult for jugglers than other types of entertainers; comedians and musicians can pay others to write their material but jugglers cannot get other people to learn new skills on their behalf.
In the early 1950s, more people began juggling as a hobby. The International Jugglers' Association began as a club for performing jugglers, but soon non-performers joined and started attending the annual conventions. The IJA continues to hold an annual convention each summer.
World Juggling Day was created as an annual day of recognition for the hobby, with the intent to teach people how to juggle, to promote juggling or for jugglers to get together and celebrate. Traditionally it is held on a Saturday in mid June.
Most cities and large towns now have juggling clubs. These are often based within, or connected to, universities and colleges. There are also community circus groups that teach young people and put on shows. The Internet Juggling Database maintains a searchable database of most juggling clubs.
Since the 1980s a juggling culture has developed. The scene revolves around local clubs and organizations, special events, shows, magazines, web sites, internet forums and, possibly most importantly, juggling conventions. In recent years there has also been a growing focus on juggling competitions.
Juggling conventions form the backbone of the juggling scene. The focus of most juggling conventions is the main "hall": a large space for open juggling. There will also be more formal workshops in which expert jugglers will work with small groups on specific skills and techniques. Most juggling conventions also include a main show (open to the general public), competitions and juggling games.
==Popular forms of juggling==
Juggling can be categorised: 
*Objects juggled
:: such as ball juggling, club juggling and rings, as well as diabolo, devil sticks and cigar box manipulation. Other objects, such as scarves, knives, pineapples, flaming torches and chainsaws, may be used.
*Method of juggling
:: the classical and best known form (toss juggling) is throwing and catching objects in the air without touching the ground. Bounce juggling is bouncing objects (usually balls) off the ground. Contact juggling is manipulating the object in constant contact with the body.
*Performance style
:: This may include the gentleman juggler - using everyday objects such as hats, canes, plates, wine bottles and cigars; comedy juggling - the juggling skill is secondary to the comic character and jokes of the performer; sport themed - the performers dress in sporting attire and juggle sports equipment such as tennis rackets, footballs, or even snooker balls; traditional circus style - presenting pure skill with precision, skill and panache. Cultural extensions of the traditional circus style include: Chinese circus - using mainly rings and badminton rackets, fantastic costumes, concentrating on numbers juggling; Russian folk - colourful costumes and characters, unique props with acrobatics.
*Number of objects juggled
:: In trick juggling, the main aim is to perform exceptionally skilful and impressive manipulations with the objects juggled. Numbers juggling, by contrast, has the goal of juggling as many objects as possible.
*Number of jugglers
:: Juggling is most commonly performed by an individual. However, multiple-person juggling is performed by two or more people. Some method of passing between the jugglers is used - this can be through the air (as in toss juggling), bounced off the ground, simply handed over, or numerous other ways depending on the objects and the style of juggling. For example, two club jugglers may stand facing each other, each juggling a 3-club pattern themselves, but then simultaneously passing between each other. Back to back juggling is also possible, and other configurations.
*Sport Juggling
:: Juggling is sometimes done as a sport (competing in competitions such as The World Juggling Federation). Organisations such as the WJF promote sport juggling and reward pure technical ability and give no credit for entertainment, or for juggling with props such as knives or torches.
The object, method, style and number of jugglers can vary. For example, a single juggler could be juggling different objects (say a ball, a club and an orange), could start by toss juggling them, then start bouncing the ball as part of the routine, and finally start passing the objects between themselves and a second juggler.
==Venues==
===Circus===
Jugglers commonly feature in circuses, with many performers having enjoyed a star billing. Many circus jugglers are from Russia and other Soviet block states, products of circus schools. Other traditions are represented, such as Chinese acrobatics schools, and traditional circus families that are often Latin American or European. Some of the greatest jugglers from the past 50 years are from Eastern Europe, including Sergei Ignatov, Andrii Kolesnikov, Evgenij Biljauer and Viktor Kee (featured in Cirque du Soleil productions).
===Variety theatres===
Variety theatres still do business in Europe, particularly in Germany. In North America the closest thing to variety shows are in casinos, in places like Las Vegas, where jugglers perform alongside singers, comedians and others. As with circuses, the demand for jugglers to perform in variety theatres and casinos is far lower than jugglers seeking work, meaning only the best, most dynamic performers find regular work in the top venues. Germany and the USA have also produced some of the greatest jugglers from the past 50 years, most notably Francis Brunn from Germany and Anthony Gatto from the United States.
===Renaissance and medieval fairs===
Renaissance and medieval fairs in North America and in Europe can also offer short-term performance venues for professional jugglers. With the increasing popularity of such venues (and with the continued success of Medieval/Renaissance themed restaurants) the ancient art of juggling finds a home.
===Street Performance===
In some places, especially tourist destinations such as Spain, Cyprus, and London, entertainers perform on the street (busking). Street performers often include juggling and comedy in their shows. Well known locations for this kind of street performance include Covent Garden in London, and Faneuil Hall in Boston.
===Sport juggling===
Juggling has, more recently, been promoted as a competitive sport by organizations such as the World Juggling Federation. Sport juggling competitions reward pure technical ability and give no extra credit for showmanship, or for juggling with elaborate props such as knives or torches. 
===Space===
Juggling has been performed in space despite the fact that the micro-gravity environment of orbit deprives the juggled objects of the essential ability to fall. This is accomplished through 'two-person' juggling passing multiple objects between them. Juggling in space was demonstrated by Greg Chamitoff and Richard Garriott while Garriott was visiting the International Space Station as a Spaceflight Participant in October of 2008. Their juggling of objects while in orbit was featured in 'Apogee of Fear', the first science fiction movie made in space by Garriott and 'Zero-G Magic', a magic show also recorded in space by Chamitoff and Garriott at that time.
==Juggling notation==
Juggling tricks and patterns can become very complex, and hence can be difficult to communicate to others. Therefore notation systems have been developed for communication of patterns, as well as for discovering new patterns. 
Diagram-based notations are the clearest way to show juggling patterns on paper, but as they are based on images, their use is limited in text based communication (email and the internet). Ladder Diagrams track the path of all the props through time, where the less complicated Causal Diagrams only track the props that are in the air, and assumes that a juggle has a prop in each hand. Numeric based notation systems are more popular and standardized than diagram-based notations. They are used extensively in both a written form, and for those "fluent" in juggle-speak, in normal conversation.
Siteswap is by far the most common juggling notation. In its most basic form, vanilla siteswap, each pattern is reduced to a simple sequence of numbers, such as "3", "97531" or "744". However, vanilla siteswap can only notate the most basic alternating two-handed patterns, with no deviations from a very strict set of rules. If one of these rules is broken, say an extra hand is added, the same string of numbers will result in a wildly different pattern than first conceived. For slightly more complicated patterns, extra rules and syntax are added to create synchronous siteswap, to notate patterns where both hands throw at the same time, and multiplex siteswap, to notate patterns where one hand holds or throws two balls on the same beat. Other extensions to siteswap have been developed, including passing siteswap, Multi-Hand Notation (MHN), and General Siteswap (GS).
Beatmap is a numeric notation which can notate any number of hands or juggling props, and in any rhythm, with no added complexity to its basic structure. Within beatmap it is possible to notate not only the balls in a pattern, but also the hands or arms of the juggler, as well as the position, location or orientation of the body of a juggler. Luke Burrage, the inventor of beatmap, claims that beatmap can more accurately describe more patterns than all ladder diagrams, causal diagrams, mills mess state transition diagrams, vanilla siteswap, synch siteswap, passing siteswap and multi-hand notation combined. So far use of beatmap is very limited, as most jugglers and all juggling software understand only variations of siteswap.