On This Day, April 18
- 2019: A redacted version of the Mueller report is released to the United States Congress and the public.
- 2018: King Mswati III of Swaziland announces that his country's name will change to Eswatini.
- 2018: Anti-government protests start in Nicaragua.
- 1996: The Israeli military commits the Qana massacre in a deliberate shelling of a United Nations compound near the village of Qana in southern Lebanon, killing 106 Lebanese civilians who were taking shelter there and wounding over 100 more.
- 1988: The United States launches Operation Praying Mantis against Iranian naval forces in the largest naval battle since World War II.