- 1721 3 Apr Robert Walpole becomes the first 'prime minister' of Britain, but the title is not in use at this time.
- 1895 3 Apr Oscar Wilde's libel action against the Marquess of Queensbury, who had called Wilde a 'sodomite', begins.
- 1917 3 Apr Vladimir Lenin arrives at the Finland Station, Russia, to assume leadership of the Bolshevik revolution.

