A grand prix driver changes gear between 2500 and 4000 times a race. In the Canadian Grand Prix, for example, a driver changes gear on average every 1.3 seconds.
The US Open was founded in 1881, the French in 1891, and the Australian in 1905. These four major tournaments have been designated as “Grand Slam” tournaments.
The first basketball game took place in 1892, where the court was half the size of today's courts. The game was played for 30 minutes, and only one point was scored in the match.