The temperature on February 17, 1867 was about 13.5 °C. The air pressure was 1 kgf/m2 and came mainly from the southwest. The airpressure was 76 cm mercury. The atmospheric humidity was 83%. Source: KNMI
From June 1, 1866 till June 4, 1868 the Netherlands had a cabinet Van Zuijlen van Nijevelt - Heemskerk with the prime ministers Mr. J.P.J.A. graaf Van Zuijlen van Nijevelt (AR) and Mr. J. Heemskerk Azn. (conservatief).
January 15 » Forty people die when ice covering the boating lake at Regent's Park, London, collapses.
March 1 » Nebraska becomes the 37th U.S. state; Lancaster, Nebraska is renamed Lincoln and becomes the state capital.
March 2 » The U.S. Congress passes the first Reconstruction Act.
April 1 » Singapore becomes a British crown colony.
August 28 » The United States takes possession of the (at this point unoccupied) Midway Atoll.
September 28 » Toronto becomes the capital of Ontario, having also been the capital of Ontario's predecessors since 1796.
Day of death August 25, 1891
The temperature on August 25, 1891 was about 16.5 °C. The air pressure was 3 kgf/m2 and came mainly from the south-southwest. The airpressure was 76 cm mercury. The atmospheric humidity was 79%. 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.
When copying data from this family tree, please include a reference to the origin: Hans Opperman, "Family tree Opperman", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-opperman/I3525.php : accessed January 22, 2026), "Johannes Gerardus Josephus Siepker (1867-1891)".
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