Noord-Hollands Archief te Haarlem, BS Huwelijk burgerlijke stand van de gemeente Amsterdam, Archiefdeel van (dubbele) registers van huwelijken v..., Amsterdam, archief 358.6, inventarisnummer 2957, 10-03-1927, Huwelijksakten van de gemeente Amsterdam, 1927, aktenummer Reg. 6A fol. 10
The temperature on March 10, 1927 was between -1.7 °C and 8.4 °C and averaged 3.4 °C. There was 0.6 mm of rain. There was 0.5 hours of sunshine (4%). The average windspeed was 2 Bft (weak wind) and was prevailing from the south-southwest. Source: KNMI
February 23 » German theoretical physicist Werner Heisenberg writes a letter to fellow physicist Wolfgang Pauli, in which he describes his uncertainty principle for the first time.
May 22 » Near Xining, China, an 8.3 magnitude earthquake causes 200,000 deaths in one of the world's most destructive earthquakes.
July 23 » The first station of the Indian Broadcasting Company goes on the air in Bombay.
August 27 » Five Canadian women file a petition to the Supreme Court of Canada, asking, "Does the word 'Persons' in Section 24 of the British North America Act, 1867, include female persons?"
December 8 » The Brookings Institution, one of the United States' oldest think tanks, is founded through the merger of three organizations that had been created by philanthropist Robert S. Brookings.
December 30 » The Ginza Line, the first subway line in Asia, opens in Tokyo, Japan.
When copying data from this family tree, please include a reference to the origin: Gert Jonker, "Family tree Jonker", database, Genealogy Online (https://www.genealogieonline.nl/jonker_stamboom/I18462.php : accessed February 25, 2026), "Hendrik Hoorn (1894-????)".
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