March 2 » United States Steel Corporation is founded as a result of a merger between Carnegie Steel Company and Federal Steel Company which became the first corporation in the world with a market capital over $1 billion.
August 10 » The U.S. Steel recognition strike by the Amalgamated Association of Iron and Steel Workers begins.
September 7 » The Boxer Rebellion in Qing dynasty (modern-day China) officially ends with the signing of the Boxer Protocol.
November 18 » Britain and the United States sign the Hay–Pauncefote Treaty, which nullifies the Clayton–Bulwer Treaty and withdraws British objections to an American-controlled canal in Panama.
Day of death December 28, 1966
The temperature on December 28, 1966 was between 1.4 °C and 6.2 °C and averaged 4.1 °C. There was 0.9 mm of rain during 2.7 hours. There was 0.9 hours of sunshine (12%). The heavily clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south. Source: KNMI
April 30 » The Church of Satan is formed in The Black House, San Francisco.
May 21 » The Ulster Volunteer Force declares war on the Irish Republican Army in Northern Ireland.
June 8 » Topeka, Kansas, is devastated by a tornado that registers as an "F5" on the Fujita scale: The first to exceed US$100million in damages. Sixteen people are killed, hundreds more injured, and thousands of homes damaged or destroyed.
August 29 » The Beatles perform their last concert before paying fans at Candlestick Park in San Francisco.
November 11 » NASA launches Gemini 12.
December 24 » A Canadair CL-44 chartered by the United States military crashes into a small village in South Vietnam, killing 129.
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/I80036.php : accessed October 5, 2026), "Pieter Spijkstra (1901-1966)".
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