Today I Learned (TIL)

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Ullallulloo@civilloquy.com

TIL the Treaty of Versailles ending World War I also included a clause establishing concert pitch as A = 435 Hz (en.wikipedia.org)

submitted 2 months ago* (last edited 2 months ago) by Ullallulloo@civilloquy.com to c/todayilearned@civilloquy.com

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From pages 170 & 171:

[T]he multilateral treaties, conventions and agreements of an economic or technical character enumerated below … shall alone be applied as between Germany and those of the Allied and Associated Powers party thereto:

. . . .

(22) Convention of November 16 and 19, 1885, regarding the establishment of a concert pitch.

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