April Fools' Day
On April 1, 2025, the most-viewed article on Wikipedia was 1989 Tiananmen Square protests and massacre, with 566,846 views. WikiPop's pick, April Fools' Day, came in at #2 with 405,746 views.
April Fools' Day or April Fool's Day is an annual custom in many Western countries on the 1st of April consisting of practical jokes, hoaxes, and pranks. Jokesters often expose their actions by shouting "April Fool[s]!" at the recipient. Mass media can be involved with these pranks, which may be revealed as such the following day. The custom of setting aside a day for playing harmless pranks upon one's neighbor has been relatively common in the world historically.