- 1507 – English guilds go under state control.
- 1621 – The Pilgrim-Wampanoag peace treaty is signed.
- 1700 – April Fool’s pranks popularized.
- 1748 – Ruins of Pompeii discovered after being buried for 1700 years.
- 1789 – The first US House of Representatives elects its first speaker, Pennsylvania Representative Frederick Augustus Conrad Muhlenberg.
- 1919 – LDS April General Conference is delayed due to a pandemic.
- 1940 – Wangari Muta Maathai is born. Dr. Maathai became an internationally renowned Kenyan environmental political activist, founder of the Green Belt Movement and was the first black woman to win a Nobel Peace Prize.
- 1946 – Alaskan earthquake triggers massive tsunami that killed 159 people in Hawaii.
- 1970 – Nixon signs legislation banning cigarette ads on TV and radio.
- 1976 – Steve Wozniak and Steve Jobs start Apple Computer in Jobs’ parents’ garage.
- 2014 – 8.2 earthquake hits Chile
