Template:Selected anniversaries/May 13: Difference between revisions

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||1888 – With the passage of the Lei Áurea ("Golden Law"), Empire of Brazil abolishes slavery.
||1888 – With the passage of the Lei Áurea ("Golden Law"), Empire of Brazil abolishes slavery.
||Jacques-Louis Soret (d. 13 May 1890) was a Swiss chemist who in 1878, along with Marc Delafontaine, first observed holmium spectroscopically. Soret was also responsible for correctly working out the chemical composition of ozone as being three oxygen atoms bound together.


||1914 – Antonia Ferrín Moreiras, Spanish mathematician, academic, and astronomer (d. 2009)
||1914 – Antonia Ferrín Moreiras, Spanish mathematician, academic, and astronomer (d. 2009)

Revision as of 21:34, 5 November 2017