The temperature on August 14, 1863 was about 23.1 °C. The air pressure was 2.5 kgf/m2 and came mainly from the east-southeast. The airpressure was 76 cm mercury. The atmospheric humidity was 39%. 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 4 » The New Apostolic Church, a Christian and chiliastic church, is established in Hamburg, Germany.
January 10 » The Metropolitan Railway, the world's oldest underground railway, opens between Paddington and Farringdon, marking the beginning of the London Underground.
May 12 » American Civil War: Battle of Raymond: Two divisions of James B. McPherson's XVII Corps turn the left wing of Confederate General John C. Pemberton's defensive line on Fourteen Mile Creek, opening up the interior of Mississippi to the Union Army during the Vicksburg Campaign.
May 27 » American Civil War: First Assault on the Confederate works at the Siege of Port Hudson.
August 17 » American Civil War: In Charleston, South Carolina, Union batteries and ships bombard Confederate-held Fort Sumter.
November 25 » American Civil War: Battle of Missionary Ridge: At Missionary Ridge in Tennessee, Union forces led by General Ulysses S. Grant break the Siege of Chattanooga by routing Confederate troops under General Braxton Bragg.
Day of marriage April 30, 1891
The temperature on April 30, 1891 was about 15.6 °C. There was 0.4 mm of rain. The air pressure was 1 kgf/m2 and came mainly from the south-southwest. The airpressure was 76 cm mercury. The atmospheric humidity was 80%. 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.
March 10 » Almon Strowger patents the Strowger switch, a device which led to the automation of telephone circuit switching.
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 15 » Pope Leo XIII defends workers' rights and property rights in the encyclical Rerum novarum, the beginning of modern Catholic social teaching.
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).
July 26 » France annexes Tahiti.
December 22 » Asteroid 323 Brucia becomes the first asteroid discovered using photography.
Day of death March 26, 1944
The temperature on March 26, 1944 was between 4.4 °C and 13.8 °C and averaged 8.5 °C. There was 9.6 hours of sunshine (77%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the west-northwest. Source: KNMI
In The Netherlands , there was from July 27, 1941 to February 23, 1945 the cabinet Gerbrandy II, with Prof. dr. P.S. Gerbrandy (ARP) as prime minister.
February 17 » World War II: Operation Hailstone begins: U.S. naval air, surface, and submarine attack against Truk Lagoon, Japan's main base in the central Pacific, in support of the Eniwetok invasion.
April 28 » World War II: Nine German E-boats attacked US and UK units during Exercise Tiger, the rehearsal for the Normandy landings, killing 946.
July 9 » World War II: American forces take Saipan, bringing the Japanese archipelago within range of B-29 raids, and causing the downfall of the Tojo government.
August 9 » Continuation War: The Vyborg–Petrozavodsk Offensive, the largest offensive launched by Soviet Union against Finland during the Second World War, ends to a strategic stalemate. Both Finnish and Soviet troops at the Finnish front dug to defensive positions, and the front remains stable until the end of the war.
August 13 » World War II: German troops begin the pillage and razing of Anogeia in Crete that would continue until September 5.
September 25 » World War II: Surviving elements of the British 1st Airborne Division withdraw from Arnhem via Oosterbeek.
When copying data from this family tree, please include a reference to the origin: Nico Blesgraaf, "Family tree Blesgraaf", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-blesgraaf/I381.php : accessed January 26, 2026), "Pieter Boonman (1863-1944)".
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