Template:Selected anniversaries/October 25: Difference between revisions

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||1840 – Helen Blanchard, American inventor (d. 1922) sewing machines
||1840 – Helen Blanchard, American inventor (d. 1922) sewing machines
||Henry Norris Russell (b. October 25, 1877) was an American astronomer who, along with Ejnar Hertzsprung, developed the Hertzsprung–Russell diagram (1910). Pic.


||Lester Randolph Ford Sr. (b. October 25, 1886) was an American mathematician
||Lester Randolph Ford Sr. (b. October 25, 1886) was an American mathematician

Revision as of 10:58, 24 March 2018