The temperature on June 1, 1891 was about 18.6 °C. There was 7 mm of rain. The air pressure was 1 kgf/m2 and came mainly from the south-southeast. The airpressure was 76 cm mercury. The atmospheric humidity was 84%. 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.
January 31 » History of Portugal: The first attempt at a Portuguese republican revolution breaks out in the northern city of Porto.
March 10 » Almon Strowger patents the Strowger switch, a device which led to the automation of telephone circuit switching.
April 1 » The Wrigley Company is founded in Chicago, Illinois.
May 5 » The Music Hall in New York City (later known as Carnegie Hall) has its grand opening and first public performance, with Tchaikovsky as the guest conductor.
May 16 » The International Electrotechnical Exhibition opens in Frankfurt, Germany, and will feature the world's first long-distance transmission of high-power, three-phase electric current (the most common form today).
October 28 » The Mino–Owari earthquake is the largest inland earthquake in Japan's history.
Day of death May 30, 1955
The temperature on May 30, 1955 was between 6.4 °C and 18.4 °C and averaged 11.8 °C. There was 10.1 hours of sunshine (62%). The partly clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north. Source: KNMI
April 1 » The EOKA rebellion against the British Empire begins in Cyprus, with the goal of unifying with Greece.
May 14 » Cold War: Eight Communist bloc countries, including the Soviet Union, sign a mutual defense treaty called the Warsaw Pact.
July 27 » The Austrian State Treaty restores Austrian sovereignty.
October 26 » Ngô Đình Diệm declares himself Premier of South Vietnam.
November 1 » The bombing of United Airlines Flight 629 occurs near Longmont, Colorado, killing all 39 passengers and five crew members aboard the Douglas DC-6B airliner.
November 19 » National Review publishes its first issue.
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/I81108.php : accessed October 18, 2026), "Pieter Jacob Keuning (1891-1955)".
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