January 2 » American statesman and diplomat John Hay announces the Open Door Policy to promote trade with China.
February 27 » The British Labour Party is founded.
March 24 » Mayor of New York City Robert Anderson Van Wyck breaks ground for a new underground "Rapid Transit Railroad" that would link Manhattan and Brooklyn.
May 29 » N'Djamena is founded as Fort-Lamy by the French commander Émile Gentil.
July 2 » The first Zeppelin flight takes place on Lake Constance near Friedrichshafen, Germany.
September 13 » Filipino insurgents defeat a small American column in the Battle of Pulang Lupa, during the Philippine–American War.
Day of marriage April 9, 1931
The temperature on April 9, 1931 was between 2.3 °C and 18.9 °C and averaged 10.5 °C. There was 0.4 mm of rain during 1.3 hours. There was 4.0 hours of sunshine (30%). The average windspeed was 2 Bft (weak wind) and was prevailing from the south-southwest. Source: KNMI
In The Netherlands , there was from August 10, 1929 to May 26, 1933 the cabinet Ruys de Beerenbrouck III, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
February 3 » The Hawke's Bay earthquake, New Zealand's worst natural disaster, kills 258.
March 14 » Alam Ara, India's first talking film, is released.
March 26 » Ho Chi Minh Communist Youth Union is founded in Vietnam.
March 31 » An earthquake in Nicaragua destroys Managua; killing 2,000.
April 14 » The Spanish Cortes deposes King Alfonso XIII and proclaims the Second Spanish Republic.
December 11 » Statute of Westminster 1931: The British Parliament establishes legislative equality between the UK and the Dominions of the Commonwealth—Australia, Canada, Newfoundland, New Zealand, South Africa, and Ireland.
When copying data from this family tree, please include a reference to the origin: Michael Jacobs, "Family tree Jacobs", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-michael-jacobs/I48265.php : accessed May 8, 2025), "Antonius Roks (1900-)".
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