January 2 » American statesman and diplomat John Hay announces the Open Door Policy to promote trade with China.
May 18 » The United Kingdom proclaims a protectorate over Tonga.
May 24 » Second Boer War: The United Kingdom annexes the Orange Free State.
July 2 » Jean Sibelius' Finlandia receives its première performance in Helsinki with the Helsinki Philharmonic Society conducted by Robert Kajanus.
October 19 » Max Planck discovers Planck's law of black-body radiation.
October 25 » The United Kingdom annexes the Transvaal.
Day of marriage May 15, 1930
The temperature on May 15, 1930 was between 3.3 °C and 17.9 °C and averaged 12.2 °C. There was 0.1 mm of rain. There was 7.8 hours of sunshine (50%). The average windspeed was 2 Bft (weak wind) and was prevailing from the west. 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.
When copying data from this family tree, please include a reference to the origin: Jan J.W. Baas, "Family tree Baas-Vanheeswijck", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-baas-vanheeswijck/I131802.php : accessed September 25, 2024), "Joannes Hendrikus Wolfkamp (1900-)".
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