The official rules for T20 cricket was established by England & Wales Cricket Board and the first tournament was played by the County Teams of England in 2003.
Within 2 years, in 2004, Australia & New Zealand played a friendly T20 match in Auckland, which was the first official T20. The increasing popularity of this format suggested that this vibrant format would be appreciated and enjoyed by many youngsters and other people as the game is short & interesting.
In no more than 3 years, this format reached greater heights with the inaugural T20 World Cup in 2007, which was won by India. This win by Team India created a huge market for T20 cricket in the Indian subcontinent, and consequently, BCCI developed IPL to exploit this, which even lead to the peak in popularity of T20 cricket.