Wikipedia:Selected anniversaries/March 18
On March 18:
- 1229 - Sixth Crusade: Frederick II declared himself King of Jerusalem.
- 1766 - The British Parliament repealed the unpopular Stamp Act.
- 1922 - Gandhi was sentenced to six years in prison for civil disobedience.
- 1965 - Cosmonaut Aleksei Leonov performed the first space walk.
- 1968 - The United States abandoned the gold standard.