In 1968 Joel Silver introduced his idea of Ultimate Frisbee to Columbia High School student council in Maplewood New Jersey, USA. The next year, the first game was played between two groups of students. In 1969 a team had been formed at the school and they played in the parking lot.
Ultimate Frisbee was invented in 1968. However, it was not established as a sport right away. The first set of rules were invented in 1970, and were revised soon after. November 7th of the same year, the first ever interscholastic game was played.
The first organized tournament, the National Collegiate Championships, was played on April 25th in 1975. Eight teams took part in a tournament in Yale.