1968 was a year of revolution across the world with movements against the political and military elite taking place in a number of countries.
In the same year, tennis had its own revolution.
For the first time, professional players were allowed to compete in the Grand Slam tournaments - ushering in a new 'Open era' which marked the beginning of the modern game.
To mark the 50th anniversary, we take a visual and interactive look at how Wimbledon has evolved since 1968.
