The temperature on September 15, 1884 was about 17.6 °C. The air pressure was 2 kgf/m2 and came mainly from the east-southeast. The airpressure was 76 cm mercury. The atmospheric humidity was 79%. 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.
May 1 » The Federation of Organized Trades and Labor Unions demands the eight-hour work day in the United States.
May 31 » The arrival at Plymouth of Tāwhiao, King of Maoris, to claim the protection of Queen Victoria.
July 3 » Dow Jones & Company publishes its first stock average.
October 6 » The Naval War College of the United States is founded in Rhode Island.
October 13 » The International Meridian Conference establishes the meridian of the Greenwich Observatory as the prime meridian.
December 6 » The Washington Monument in Washington, D.C., is completed.
Day of marriage July 1, 1911
The temperature on July 1, 1911 was between 11.9 °C and 18.0 °C and averaged 14.2 °C. There was 2.8 mm of rain. There was 2.8 hours of sunshine (17%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west-southwest. Source: KNMI
April 8 » Dutch physicist Heike Kamerlingh Onnes discovers superconductivity.
April 27 » Following the resignation and death of William P. Frye, a compromise is reached to rotate the office of President pro tempore of the United States Senate.
April 29 » Tsinghua University, one of mainland China's leading universities, is founded.
July 7 » The United States, UK, Japan, and Russia sign the North Pacific Fur Seal Convention of 1911 banning open-water seal hunting, the first international treaty to address wildlife preservation issues.
October 24 » Orville Wright remains in the air nine minutes and 45 seconds in a glider at Kill Devil Hills, North Carolina.
November 19 » The Doom Bar in Cornwall claimed two ships, Island Maid and Angele, the latter killing the entire crew except the captain.
Day of death February 19, 1958
The temperature on February 19, 1958 was between -3.2 °C and 5.0 °C and averaged 1.8 °C. There was 4.2 mm of rain during 7.1 hours. There was 0.7 hours of sunshine (7%). The heavily clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west. Source: KNMI
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/I62931.php : accessed October 18, 2026), "Johanna de Haan (1884-1958)".
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