Wikipedia:Selected anniversaries/May 23
On May 23:
- 1533 - The marriage of Henry VIII of England and Catherine of Aragon was annulled.
- 1555 - Gianni Carafa became Pope Paul IV.
- 1873 - Canada's parliament established the North West Mounted Police.
- 1911 - New York Public Library was dedicated.
- 1995 - The Java programming language was officially announced.