January 30 » The first Anglo-Japanese Alliance is signed in London.
March 6 » Real Madrid CF is founded.
April 18 » The 7.5 Mw Guatemala earthquake shakes Guatemala with a maximum Mercalli intensity of VIII (Severe), killing between 800–2,000.
July 17 » Willis Carrier creates the first air conditioner in Buffalo, New York.
November 29 » The Pittsburgh Stars defeated the Philadelphia Athletics, 11–0 to win the first championship associated with an American national professional football league.
December 10 » The opening of the reservoir of the Aswan Dam in Egypt.
Day of marriage January 30, 1930
The temperature on January 30, 1930 was between -0.3 °C and 5.2 °C and averaged 2.6 °C. There was 1.8 mm of rain during 2.7 hours. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south east. 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.
March 13 » The news of the discovery of Pluto is announced by Lowell Observatory.
June 9 » A Chicago Tribune reporter, Jake Lingle, is killed during rush hour at the Illinois Central train station by Leo Vincent Brothers, allegedly over a $100,000 gambling debt owed to Al Capone.
July 7 » Industrialist Henry J. Kaiser begins construction of Boulder Dam (now known as Hoover Dam).
September 17 » The Kurdish Ararat rebellion is suppressed by the Turks.
November 11 » Patent number US1781541 is awarded to Albert Einstein and Leó Szilárd for their invention, the Einstein refrigerator.
December 29 » Sir Muhammad Iqbal's presidential address in Allahabad introduces the two-nation theory and outlines a vision for the creation of Pakistan.
When copying data from this family tree, please include a reference to the origin: Joop Klavers, "Family tree Klavers", database, Genealogy Online (https://www.genealogieonline.nl/stamboom_klavers/I461990.php : accessed March 17, 2026), "Harm Langenberg (1902-)".
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