Question: Battle of the Year, commonly referred to as BOTY, is an annual international breakdancing competition that began in which year?

Context paragraphs:
Wildlife Photographer of the Year: Wildlife Photographer of the Year is a wildlife photography competition in the world.  It is an annual international wildlife photography competition owned by the Natural History Museum.  It was known as BG Wildlife Photographer of the Year from 1990 to 2003, and briefly as Shell Wildlife Photographer of the Year, Kodak Wildlife Photographer of the Year and Prudential Wildlife Photographer of the Year.  The first competition was held in 1964, with three categories and around 600 entries.  In 2008 the competition received over 32,000 entries from 3100 photographers in 82 countries.  There is an exhibition of the winning and commended images each year at the Natural History Museum, which later tours around the world.  It is often cited as being one of the most prestigious photography competitions in the world.

LAWASIA Moot: The LAWASIA International Moot Competition ("LAWASIA Moot") is an annual international moot court competition that is organised by LAWASIA, an international organisation comprising bar associations, lawyers, judges, and academics through the LAWASIA Moot Standing Committee.  The moot problem ranges from international human rights to international commercial arbitration, and the venue of the competition rotates between LAWASIA member states as it is held in conjunction with the annual LAWASIA Conference.  Around 30 to 40 law schools from around the world take part in the moot each year; Malaysia is the only member state that conducts national rounds, of which the top two team teams are selected for the international rounds.

BOTY Japan: This page provides the summary of BOTY Japan held in Japan.  Winner advances to "BOTY International" also known as Battle of the Year.

WTO/FTA Moot: The WTO-FTA Moot or Asian WTO Moot is an annual international moot court competition that began in 2010.  Hosted in Seoul, the competition is sponsored by the South Korean Ministry of Trade, Energy, and Trade and the Korean Society of International Economic Law.  Judges in the competition include members of the Appellate Body of the World Trade Organisation.  Teams have to go through two preliminary rounds before the top eight teams by score advance to the first round of knockouts.  The competition mainly comprises Korean teams, but since 2015 foreign schools have been invited to participate every year.

BOTY Korea: This page provides the summary of BOTY Korea held in Korea.  Winner advances to "BOTY International" also known as Battle of the Year.

Copa Sudamericana: The CONMEBOL Sudamericana, named as "Copa Sudamericana" (] ; Portuguese: "Copa Sul-Americana" ] ) is an annual international club football competition organized by the CONMEBOL since 2002.  It is the second-most prestigious club competition in South American football.  CONCACAF clubs were invited between 2004 and 2008.  The CONMEBOL Sudamericana began in 2002, replacing the separate competitions Copa Merconorte and Copa Mercosur (that before replaced Copa CONMEBOL) by a single competition.  Since its introduction, the competition has been a pure elimination tournament with the number of rounds and teams varying from year to year.

International Cross Country Championships: The International Cross Country Championships was an annual international competition in cross country running.  It was created in 1903 by the International Cross Country Union (ICCU) and it marked the first time that an annual international championships had been held for the sport.

Last For One: Last For One is a b-boy crew that formed in 1997.  With their win in the 2005 Battle of the Year, they have been recognized as a worldwide known name and a contributor to the Korean Wave, their fans respectively calling them the 'Dancing Taeguk Warriors'.  They were heavily featured in the film "Planet B-Boy", which documents the 2005 Battle of the Year.  While most of the members were poor and some lived in extreme poverty in the Southern part of South Korea they had traveled to the capital of Seoul to compete in Battle of the Year otherwise known as BOTY.  B-boy Joe currently heads the main wing while B-boy (Jusung) Lee and B-girl (Zaina Freeman) Zinny are regional members and compete in U.S. or international based events.

Breakdancing: Breakdancing, also called breaking or b-boying, is an athletic style of street dance.  While diverse in the amount of variation available in the dance, breakdancing mainly consists of four kinds of movement: "toprock", "downrock", "power moves", and "freezes".  Breakdancing is typically set to hip-hop, funk, and breakbeat music, although modern trends allow for much wider varieties of music along certain ranges of tempo and beat patterns.

Battle of the Year: Battle of the Year, commonly referred to as BOTY, is an annual international breakdancing competition that began in 1990.  It has been regarded as the premier b-boying competition in the world and has been referred to as the "World Cup of B-Boying".  Regional qualifying tournaments, also known as "preliminaries", are held worldwide culminating in the "BOTY International", the world finals event which is currently held at Volkswagen Halle in Braunschweig, Germany.

Supporting paragraphs: Battle of the Year Breakdancing
Answer: 1990