Wikipedia:Selected anniversaries/February 23
February 23: Defenders of the Motherland Day in Russia (1918), Republic Day in Guyana, (1970), Lantern Festival in the Chinese lunar calendar (2005).
- 1455 - Johannes Gutenberg in Mainz began printing the Gutenberg Bible.
- 1893 - Rudolf Diesel received a patent for the diesel engine.
- 1903 - Guantánamo Bay, Cuba was perpetually leased to the United States.
- 1945 - Joe Rosenthal took the Pulitzer Prize-winning photograph Raising the Flag on Iwo Jima, an image that was later reproduced as the U.S. Marine Corps War Memorial.
- 1947 - The International Organization for Standardization was founded. It is responsible for worldwide industrial and commercial ISO standards.
Recent days: February 22 – February 21 – February 20