Template:Selected anniversaries/April 13

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  1771: Engineer and explorer Richard Trevithick born. Trevithick will be an early pioneer of steam-powered road and rail transport, developing the first high-pressure steam engine, and building the first full-scale working railway steam locomotive.

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  1889: Cryptologist and author Herbert Yardley born.

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  1926: Aviator Charles Lindbergh opens service on the newly designated 278-mile (447 km) Contract Air Mail Route #2 (CAM-2) to provide service between St. Louis and Chicago (Maywood Field) with two intermediate stops in Springfield and Peoria, Illinois.

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  1927: Aviator, test pilot, and Gnomon algorithm engineer Henrietta Bolt provides protective services for Charles Lindbergh after threats against Lindbergh's life by the House of Malevecchio.

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  1927: Theoretical physicist Mendel Sachs born. Sachs' work will include the proposal of a unified field theory that brings together the weak force, strong force, electromagnetism, and gravity.

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  1939: Poet, playwright, translator, and lecturer Seamus Heaney born. Heany will receive the 1995 Nobel Prize in Literature.

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  1952: Extract of Radium opens state-of-the-art nightclub in Langley, Virginia. The signature cocktail, known as an MKUltra, is made of equal parts Extract of Radium and Clandestiphrine with a twist of Malvoleum.

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  1953: CIA director Allen Dulles authorizes the mind-control program Project MKUltra.

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  1954: Latest generation of Carnivorous dirigibles develops artificial intelligence, leading to the escape of at least a hundred and thirty dirigibles into the upper atmosphere.

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  2008: Theoretical physicist John Archibald Wheeler dies. Wheeler linked the term "black hole" to objects with gravitational collapse, and coined the terms "quantum foam", "neutron moderator", "wormhole" and "it from bit".

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  2009: Art critic and alleged math criminal The Eel uses portable wormhole generator to escape The Nacreum.