- 1939 - The "Pact of Steel" was signed between Hitler and Mussolini, binding Germany and Italy to support each other in times of war.
- 1967 - A fire at the Brussels store "L'Innovation" resulted in the death of over 320 people.
- 1998 - Voters in Northern Ireland approved a peace agreement aimed at ending 30 years of Protestant-Catholic violence. Approximately 95% of voters in the Republic of Ireland simultaneously approved related changes to their constitution.
- 2001 - The French National Assembly approved a controversial bill to grant more powers to the island of Corsica, where separatists had protested against Paris for over 20 years.
- 2003 - The United Nations Security Council voted 14 to 0 to adopt a U.S.-led resolution lifting sanctions on Iraq after 13 years.
- 2003 - Canadian speed skater Catriona Le May Doan announced her retirement after setting 8 world records.
- 2004 - Michael Moore won the Palme d'Or for the film "Fahrenheit 9/11."
- 2004 - Manchester United won the FA Cup for the 11th time.
- 2014 - An explosion in the Chinese city of Ürümqi killed dozens.
- 2017 - 22 people were killed in a bombing at an Ariana Grande concert in Manchester.
