SMS Kronprinz (Crown Prince) was the last battleship of the four-ship König class of the Imperial German Navy, laid down in 1911 and launched on 21 February 1914. The ship was armed with ten 30.5-centimeter (12.0 in) guns in five twin turrets and could steam at a top speed of 21 knots (39 km/h; 24 mph). Along with her three sister ships, König, Grosser Kurfürst and Markgraf, Kronprinz took part in most of the World War I fleet actions, including the 1916 Battle of Jutland. She was torpedoed by the British submarine HMS J1 in November 1916 during an operation off the Danish coast. Following repairs, she participated in Operation Albion, an amphibious assault in the Baltic, in October 1917. After Germany's defeat in the war and the signing of the Armistice in November 1918, Kronprinz and most of the capital ships of the High Seas Fleet were interned by the Royal Navy in Scapa Flow, and later scuttled by their German crews. (Full article...)

Part of the Battleships of Germany series, one of Wikipedia's featured topics.

A duck's webbed foot

• ... that some water birds use their webbed feet (illustration shown) as an aid in elaborate courtship displays?
• ... that Herbert Seddon's textbook on nerve injuries took 30 years to write?
• ... that Kyle Busch won the 2011 Food City 250 stock car race by 0.019 seconds over his Joe Gibbs Racing teammate Joey Logano, the closest finish in a Nationwide Series race at Bristol Motor Speedway?
• ... that after being captured and imprisoned by British Major Lionel Bostock, the Nuer prophet Garluark was restored to his former position as ruler of a region of Anglo-Egyptian Sudan?
• ... that fares on Tacoma Link are covered by a subsidy from local businesses?
• ... that at 8 minutes and 45 seconds, the released version of Neil Young's song "Crime in the City (Sixty to Zero Part I)" was much shorter than the original, which included a verse about genocide of Native Americans?
• ... that Helmut Kleinicke was dismissed from his job because he was caught helping Jews escape?
• ... that the Gutta Percha Company, whose main product was submarine telegraph cable, started out making bottle stoppers?

Karl Lagerfeld

• German fashion designer Karl Lagerfeld (pictured), best known for his creative work at Chanel, dies at the age of 85.
• A suicide bombing attack near Pulwama, in Indian-administered Kashmir, kills 40 security personnel.
• NASA concludes the 15-year Opportunity Mars rover mission after being unable to wake the rover from hibernation.
• The Republic of Macedonia changes its name to the Republic of North Macedonia as the Prespa agreement takes effect, ending a 27-year naming dispute with Greece.

February 21

Kurt Eisner

• 1437 – King James I of Scotland was murdered at Perth in a failed coup by his uncle and former ally Walter Stewart, Earl of Atholl.
• 1828 – The inaugural issue of the Cherokee Phoenix, the first newspaper in a Native American language, was published.
• 1919 – Bavarian socialist Kurt Eisner (pictured), who had organized the German Revolution that overthrew the Wittelsbach monarchy and established Bavaria as a republic, was assassinated.
• 1929 – In the first battle of the Warlord Rebellion against the Nationalist government of China, a 24,000-strong rebel force led by Zhang Zongchang was defeated at Zhifu by 7,000 NRA troops.
• 1973 – After accidentally having strayed into Israeli-occupied airspace, Libyan Arab Airlines Flight 114 was shot down by two Israeli fighter aircraft, killing 108.

Edward Hawke, 1st Baron Hawke (b. 1705) · Mary Edwards Walker (d. 1919) · Howard Florey (d. 1968)