- 1602 United Dutch East Indian Company (VOC) forms
- 1815 Napoleon enters Paris after escape from Elba, begins 100-day rule
- 1890 German Emperor Wilhelm II fires republic chancellor Otto von Bismarck
- 1900 US Secretary of State John Hay announces that all nations to whom he sent notes calling for an 'open door' policy in China have essentially accepted his stand.
- 1933 Dachau, 1st Nazi concentration camp, completed
- 2016 Barack Obama becomes the first US President to visit Cuba since 1928, arriving for a 2 day tour
Harriet Beecher Stowe's "Uncle Tom's Cabin" published (Boston)
On March 20, 1852