Wikipedia:Main Page history/2019 February 21
From today's featured articleSMS 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.
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Edward Hawke, 1st Baron Hawke (b. 1705) · Mary Edwards Walker (d. 1919) · Howard Florey (d. 1968)
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Papilio machaon, also known as the Old World swallowtail, is a butterfly of the family Papilionidae. It is present throughout the entire Palearctic region, ranging from western Europe and Russia to China and Japan, including the Himalayas and Taiwan, across into Alaska, Canada, and the United States, and as far south as Saudi Arabia and Oman. The adult butterfly typically has yellow wings with black vein markings, and a wingspan of 65–86 millimetres (2.6–3.4 in). The hindwing has a pair of protruding tails, similar to that of a swallow, and just below each tail is one red and six blue eyespots. In the caterpillar stage, P. machaon has a length of 45 millimetres (1.8 in) and resembles a bird dropping, giving it camouflage. Photograph: Zeynel Cebeci
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