The temperature on October 22, 1869 was about 9.4 °C. The air pressure was 1 kgf/m2 and came mainly from the north-northwest. The airpressure was 77 cm mercury. The atmospheric humidity was 70%. Source: KNMI
From June 4, 1868 till January 4, 1871 the Netherlands had a cabinet Van Bosse - Fock with the prime ministers Mr. P.P. van Bosse (liberaal) and Mr. C. Fock (liberaal).
January 27 » Boshin War: Tokugawa rebels establish the Ezo Republic in Hokkaidō.
March 24 » The last of Titokowaru's forces surrendered to the New Zealand government, ending his uprising.
April 17 » Morelos is admitted as the 27th state of Mexico.
June 27 » The Republic of Ezo on the island of Hokkaido ends after being defeated by Japanese Imperial troops.
July 10 » Gävle, Sweden, is largely destroyed in a fire; 80% of its 10,000 residents are left homeless.
October 5 » The Hennepin Island tunnel collapses during construction, nearly destroying St. Anthony Falls.
Day of marriage April 25, 1891
The temperature on April 25, 1891 was about 9.0 °C. The air pressure was 1 kgf/m2 and came mainly from the north-northeast. The airpressure was 76 cm mercury. The atmospheric humidity was 61%. Source: KNMI
In The Netherlands , there was from April 21, 1888 to August 21, 1891 the cabinet Mackay, with Mr. A. baron Mackay (AR) as prime minister.
In The Netherlands , there was from August 21, 1891 to May 9, 1894 the cabinet Van Tienhoven, with Mr. G. van Tienhoven (unie-liberaal) as prime minister.
January 29 » Liliuokalani is proclaimed the last monarch and only queen regnant of the Kingdom of Hawaii.
March 10 » Almon Strowger patents the Strowger switch, a device which led to the automation of telephone circuit switching.
April 1 » The Wrigley Company is founded in Chicago, Illinois.
May 16 » The International Electrotechnical Exhibition opens in Frankfurt, Germany, and will feature the world's first long-distance transmission of high-power, three-phase electric current (the most common form today).
August 18 » Major hurricane strikes Martinique, leaving 700 dead.
December 22 » Asteroid 323 Brucia becomes the first asteroid discovered using photography.
Day of death November 20, 1949
The temperature on November 20, 1949 was between 6.0 °C and 10.2 °C and averaged 7.8 °C. There was 1.2 mm of rain during 1.3 hours. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south. Source: KNMI
From August 7, 1948 till March 15, 1951 the Netherlands had a cabinet Drees - Van Schaik with the prime ministers Dr. W. Drees (PvdA) and Mr. J.R.H. van Schaik (KVP).
When copying data from this family tree, please include a reference to the origin: Dirk Zwinderman, "Family tree Zwinderman", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-zwinderman/I1848.php : accessed February 27, 2026), "Zwaantje Van Der Helm (1869-1949)".
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