Wikipedia:Selected anniversaries/May 4
May 4: Independence Day in Latvia (1990)
- 1471 - Wars of the Roses: Yorkist Edward IV defeated a Lancastrian army in the Battle of Tewkesbury.
- 1855 - William Walker and group of mercenaries sailed from San Francisco to conquer Nicaragua.
- 1919 - The May Fourth Movement began with large-scale student demonstrations in Tiananmen Square in Peking, China against the Paris Peace Conference and Japan's Twenty-One Demands.
- 1953 - Ernest Hemingway was awarded the Pulitzer Prize for The Old Man and the Sea.