The temperature on April 3, 1890 was about 10.7 °C. The air pressure was 4 kgf/m2 and came mainly from the east-northeast. The airpressure was 76 cm mercury. The atmospheric humidity was 44%. Source: KNMI
July 1 » Canada and Bermuda are linked by telegraph cable.
July 2 » The U.S. Congress passes the Sherman Antitrust Act.
July 27 » Vincent van Gogh shoots himself and dies two days later.
October 1 » Yosemite National Park is established by the U.S. Congress.
December 22 » Cornwallis Valley Railway begins operation between Kentville and Kingsport, Nova Scotia.
December 29 » Wounded Knee Massacre on Pine Ridge Indian Reservation, 300 Lakota are killed by the United States 7th Cavalry Regiment.
Day of marriage January 4, 1911
The temperature on January 4, 1911 was between 0.4 °C and 2.1 °C and averaged 1.3 °C. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the northeast. Source: KNMI
February 18 » The first official flight with airmail takes place from Allahabad, United Provinces, British India (now India), when Henri Pequet, a 23-year-old pilot, delivers 6,500 letters to Naini, about 10 kilometres (6.2mi) away.
May 15 » More than 300 Chinese immigrants are killed in the Torreón massacre when the forces of the Mexican Revolution led by Emilio Madero take the city of Torreón from the Federales.
May 23 » The New York Public Library is dedicated.
June 16 » IBM founded as the Computing-Tabulating-Recording Company in Endicott, New York.
July 24 » Hiram Bingham III re-discovers Machu Picchu, "the Lost City of the Incas".
August 29 » Ishi, considered the last Native American to make contact with European Americans, emerges from the wilderness of northeastern California.
When copying data from this family tree, please include a reference to the origin: Sim Mostert, "Genealogy Pot en Smit", database, Genealogy Online (https://www.genealogieonline.nl/genealogie_pot_smit/I1969.php : accessed December 27, 2025), "KRIJN de GRAAF (1890-????)".
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