Many annual events celebrate the diverse cultures of Houston. The largest and longest running is the annual Houston Livestock Show and Rodeo, held over 20 days from early to late March, is the largest annual livestock show and rodeo in the world. Another large celebration is the annual night-time Houston Pride Parade, held at the end of June. Other annual events include the Houston Greek Festival, Art Car Parade, the Houston Auto Show, the Houston International Festival, and the Bayou City Art Festival, which is considered to be one of the top five art festivals in the United States.
How long does the Houston Livestock Show and Rodeo last?
20 days

Intergender singles bouts were first fought on a national level in the 1990s. This began with Luna Vachon, who faced men in ECW and WWF. Later, Chyna became the first female to hold a belt that was not exclusive to women when she won the Intercontinental Championship. While it is a rare feat in WWE, in TNA, ODB participates in singles intergender matches. Also, ODB's kayfabe husband and tag team partner Eric Young held the Knockouts Tag Team Championship for a record 478 days before it was stripped by Brooke Hogan because Young was a male.
When were intergender singles bouts fought on a national scale? 
1990s

New York became the most populous urbanized area in the world in the early 1920s, overtaking London. The metropolitan area surpassed the 10 million mark in the early 1930s, becoming the first megacity in human history. The difficult years of the Great Depression saw the election of reformer Fiorello La Guardia as mayor and the fall of Tammany Hall after eighty years of political dominance.
What is the term for a city with a population of over 10 million?
megacity