The temperature on August 21, 1863 was about 16.5 °C. There was 2 mm of rain. The air pressure was 6.5 kgf/m2 and came mainly from the west-northwest. The airpressure was 76 cm mercury. The atmospheric humidity was 56%. Source: KNMI
In The Netherlands , there was from February 1, 1862 to February 10, 1866 the cabinet Thorbecke II, with Mr. J.R. Thorbecke (liberaal) as prime minister.
January 29 » The Bear River Massacre: A detachment of California Volunteers led by Colonel Patrick Edward Connor engage the Shoshone at Bear River, Washington Territory, killing hundreds of men, women and children.
March 19 » The SSGeorgiana, said to have been the most powerful Confederate cruiser, is destroyed on her maiden voyage with a cargo of munitions, medicines, and merchandise then valued at over $1,000,000.
May 14 » American Civil War: The Battle of Jackson takes place.
May 23 » The General German Workers' Association, a precursor of the modern Social Democratic Party of Germany, is founded in Leipzig, Kingdom of Saxony.
October 29 » Eighteen countries meet in Geneva and agree to form the International Red Cross.
November 18 » King Christian IX of Denmark signs the November constitution that declares Schleswig to be part of Denmark. This is seen by the German Confederation as a violation of the London Protocol and leads to the German–Danish war of 1864.
Day of marriage May 16, 1891
The temperature on May 16, 1891 was about 11.3 °C. There was 0.7 mm of rain. The air pressure was 10 kgf/m2 and came mainly from the west-northwest. The airpressure was 75 cm mercury. The atmospheric humidity was 58%. 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 Weening, "Family tree Weening", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-weening/I56227.php : accessed October 9, 2026), "Johannes Wytzes Jansma (1863-????)".
Copy warning
Genealogical publications are copyright protected. Although data is often retrieved from public archives, the searching, interpreting, collecting, selecting and sorting of the data results in a unique product. Copyright protected work may not simply be copied or republished.
Please stick to the following rules
Request permission to copy data or at least inform the author, chances are that the author gives permission, often the contact also leads to more exchange of data.
Do not use this data until you have checked it, preferably at the source (the archives).
State from whom you have copied the data and ideally also his/her original source.