The temperature on May 13, 1867 was about 10.2 °C. The air pressure was 7 kgf/m2 and came mainly from the north-northwest. The airpressure was 75 cm mercury. The atmospheric humidity was 71%. 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).
February 28 » Seventy years of Holy See–United States relations are ended by a Congressional ban on federal funding of diplomatic envoys to the Vatican and are not restored until January 10, 1984.
May 15 » Canadian Bank of Commerce opens for business in Toronto, Ontario. The bank would later merge with Imperial Bank of Canada to become what is CIBC in 1961.
July 1 » The British North America Act takes effect as the Province of Canada, New Brunswick, and Nova Scotia join into confederation to create the modern nation of Canada. Sir John A. Macdonald is sworn in as the first Prime Minister of Canada. This date is commemorated annually in Canada as Canada Day, a national holiday.
July 17 » Harvard School of Dental Medicine is established in Boston, Massachusetts. It is the first dental school in the U.S. that is affiliated with a university.
October 21 » The Medicine Lodge Treaty is signed by southern Great Plains Indian leaders. The treaty requires Native American Plains tribes to relocate to a reservation in western Oklahoma.
November 9 » Tokugawa shogunate hands power back to the Emperor of Japan, starting the Meiji Restoration.
Day of marriage September 23, 1899
The temperature on September 23, 1899 was about 13.3 °C. The airpressure was 76 cm mercury. The atmospheric humidity was 65%. Source: KNMI
February 2 » The Australian Premiers' Conference held in Melbourne decides to locate Australia's capital city, Canberra, between Sydney and Melbourne.
February 6 » Spanish–American War: The Treaty of Paris, a peace treaty between the United States and Spain, is ratified by the United States Senate.
March 4 » Cyclone Mahina sweeps in north of Cooktown, Queensland, with a 12 metres (39ft) wave that reaches up to 5 kilometres (3.1mi) inland, killing over 300.
March 27 » Emilio Aguinaldo leads Filipino forces for the only time during the Philippine–American War at the Battle of Marilao River.
October 11 » The Second Boer War erupts in South Africa between the British-ruled Cape Colony, and the Boer-ruled Transvaal and Orange Free State.
November 2 » The Boers begin their 118-day siege of British-held Ladysmith during the Second Boer War.
Day of death May 12, 1946
The temperature on May 12, 1946 was between 5.2 °C and 22.0 °C and averaged 14.0 °C. There was 5.7 hours of sunshine (37%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the northeast. Source: KNMI
From June 24, 1945 till July 3, 1946 the Netherlands had a cabinet Schermerhorn - Drees with the prime ministers Prof. ir. W. Schermerhorn (VDB) and W. Drees (PvdA).
In The Netherlands , there was from July 3, 1946 to August 7, 1948 the cabinet Beel I, with Dr. L.J.M. Beel (KVP) as prime minister.
February 8 » The first portion of the Revised Standard Version of the Bible, the first serious challenge to the popularity of the Authorized King James Version, is published.
June 23 » The 1946 Vancouver Island earthquake strikes Vancouver Island, British Columbia, Canada.
July 1 » Crossroads Able is the first postwar nuclear weapon test.
October 1 » Nazi leaders are sentenced at the Nuremberg trials.
December 11 » The United Nations International Children's Emergency Fund (UNICEF) is established.
December 12 » United Nations Security Council Resolution 13 relating to acceptance of Siam to United Nations is adopted.
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/I156816.php : accessed October 23, 2026), "Meindert de Groot (1867-1946)".
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