Today I Learned (TIL)

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

submitted 4 months ago* (last edited 4 months ago) by [email protected] to c/[email protected]

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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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[–] [email protected] 1 points 4 months ago* (last edited 4 months ago)

I was about to joke how that probably contributed to WWII, but it turns out they had already pushed it into Germany and Italy 30 years before WWI.

But, humm... Unless it was Japan's reason to join.