The temperature on April 12, 1887 was about 11.6 °C. The air pressure was 4 kgf/m2 and came mainly from the south east. The airpressure was 76 cm mercury. The atmospheric humidity was 54%. Source: KNMI
In The Netherlands , there was from April 23, 1884 to April 21, 1888 the cabinet Heemskerk, with Mr. J. Heemskerk Azn. (conservatief) as prime minister.
January 20 » The United States Senate allows the Navy to lease Pearl Harbor as a naval base.
February 2 » In Punxsutawney, Pennsylvania the first Groundhog Day is observed.
April 28 » A week after being arrested by the Prussian Secret Police, French police inspector Guillaume Schnaebelé is released on order of William I, German Emperor, defusing a possible war.
June 18 » The Reinsurance Treaty between Germany and Russia is signed.
July 6 » David Kalākaua, monarch of the Kingdom of Hawaii, is forced to sign the Bayonet Constitution, which transfers much of the king's authority to the Legislature of the Kingdom of Hawaii.
November 11 » August Spies, Albert Parsons, Adolph Fischer and George Engel are executed as a result of the Haymarket affair.
Day of marriage March 31, 1911
The temperature on March 31, 1911 was between 1.8 °C and 14.1 °C and averaged 8.5 °C. There was 3.0 hours of sunshine (23%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west-southwest. Source: KNMI
April 2 » The Australian Bureau of Statistics conducts the country's first national census.
May 21 » President of Mexico Porfirio Díaz and the revolutionary Francisco Madero sign the Treaty of Ciudad Juárez to put an end to the fighting between the forces of both men, concluding the initial phase of the Mexican Revolution.
May 23 » The New York Public Library is dedicated.
June 28 » The Nakhla meteorite, the first one to suggest signs of aqueous processes on Mars, falls to Earth, landing in Egypt.
September 18 » Russian Premier Pyotr Stolypin is shot at the Kiev Opera House.
September 25 » An explosion of badly degraded propellant charges on board the French battleship Liberté detonates the forward ammunition magazines and destroys the ship.
Day of death March 26, 1913
The temperature on March 26, 1913 was between -0.3 °C and 12.8 °C and averaged 6.7 °C. There was 10.1 hours of sunshine (81%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the east. Source: KNMI
In The Netherlands , there was from February 12, 1908 to August 29, 1913 the cabinet Heemskerk, with Mr. Th. Heemskerk (AR) as prime minister.
In The Netherlands , there was from August 29, 1913 to September 9, 1918 the cabinet Cort van der Linden, with Mr. P.W.A. Cort van der Linden (liberaal) as prime minister.
February 2 » Grand Central Terminal is opened in New York City.
February 13 » The 13th Dalai Lama proclaims Tibetan independence following a period of domination by Manchu Qing dynasty and initiated a period of almost four decades of independence.
February 21 » Ioannina is incorporated into the Greek state after the Balkan Wars.
August 16 » Completion of the Royal Navy battlecruiser HMSQueen Mary.
August 16 » Tōhoku Imperial University of Japan (modern day Tohoku University) becomes the first university in Japan to admit female students.
October 31 » The Indianapolis Streetcar Strike and subsequent riot begins.
When copying data from this family tree, please include a reference to the origin: Hans Weening, "Family tree Weening", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-weening/I218255.php : accessed October 14, 2026), "Roelf Hummel (1887-1913)".
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