Despite this progressive enlargement, it took until 1980 for women to participate in the world championships. The first women's world championships were held in New York City in 1980, and were held in alternating years as the men's championships until the 1987 World Judo Championships in Essen, where the two competitions were merged into one world championship. The mixed championships have been held biannually since 1987. In 2005, the world championships made its debut on the African continent in Cairo, Egypt. In the International Judo Federation meeting held in Rio de Janeiro, Brazil in 2007 (during the 2007 World Judo Championships), it was decided that France would host the world championships for the fifth time in 2011.