The temperature on April 2, 1957 was between 4.5 °C and 12.5 °C and averaged 7.1 °C. There was 4.3 hours of sunshine (33%). The partly clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north. Source: KNMI
February 22 » Ngô Đình Diệm of South Vietnam survives a communist shooting assassination attempt in Buôn Ma Thuột.
April 30 » Supplementary Convention on the Abolition of Slavery entered into force.
May 1 » Thirty-four people are killed when a Vickers Viking airliner crashes in Hampshire, England.
July 11 » Prince Karim Husseini Aga Khan IV inherits the office of Imamat as the 49th Imam of Shia Imami Ismai'li worldwide, after the death of Sir Sultan Mahommed Shah Aga Khan III.
July 28 » Heavy rain and a mudslide in Isahaya, western Kyushu, Japan, kills 992.
August 28 » U.S. Senator Strom Thurmond begins a filibuster to prevent the Senate from voting on Civil Rights Act of 1957; he stopped speaking 24 hours and 18 minutes later, the longest filibuster ever conducted by a single Senator.
When copying data from this family tree, please include a reference to the origin: Harry Westerman, "Family tree Westerman", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-westerman/X1517.php : accessed February 16, 2026), "Jan Karel Frederik Arkes (± 1884-1957)".
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