Template:Selected anniversaries/April 13: Difference between revisions

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||1892 – Robert Watson-Watt, Scottish engineer, invented the Radar (d. 1973)
||1892 – Robert Watson-Watt, Scottish engineer, invented the Radar (d. 1973)
||Prince Baldassarre Boncompagni-Ludovisi (d. 13 April 1894), was an Italian historian of mathematics and aristocrat. Pic.


||1899 – Alfred Mosher Butts, American architect and game designer, created Scrabble (d. 1993)
||1899 – Alfred Mosher Butts, American architect and game designer, created Scrabble (d. 1993)

Revision as of 20:49, 13 May 2018