Wikipedia:Selected anniversaries/February 23

February 23: Defender of the Fatherland Day in Russia; Mashramani in Guyana (1970); National Day in Brunei.

• 1455 - Johannes Gutenberg in Mainz, Germany began printing the Gutenberg Bible (pictured).

• 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 (ISO) was founded. It is responsible for worldwide industrial and commercial ISO standards.

Recent days: February 22 – February 21 – February 20

More anniversaries:

• January 31
• February 1
• February 2