An event every year that begins at 00:00 on day 21 of July, repeating indefinitely
When: July 21
First occurrence: 1925
July 21, 1925, was the date that in Tennessee John Scopes was put on trial. John Scopes was a science teacher who broke the law by teaching human evolution instead of creationism.
This trial was given a lot of media attention for both the reasons of protesting Tennessee‘s Butler Act and because the trial attracted a lot of tourism and sold a lot of monkey themed merchandize.