The temperature on July 7, 1967 was between 14.5 °C and 25.4 °C and averaged 20.0 °C. There was 4.2 hours of sunshine (25%). The heavily clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the north-northeast. Source: KNMI
March 26 » Ten thousand people gather for one of many Central Park be-ins in New York City.
June 4 » Seventy-two people are killed when a Canadair C-4 Argonaut crashes at Stockport in England.
October 9 » A day after his capture, Ernesto "Che" Guevara is executed for attempting to incite a revolution in Bolivia.
November 7 » Carl B. Stokes is elected as Mayor of Cleveland, Ohio, becoming the first African American mayor of a major American city.
November 14 » American physicist Theodore Maiman is given a patent for his ruby laser systems, the world's first laser.
December 3 » At Groote Schuur Hospital in Cape Town, South Africa, a transplant team headed by Christiaan Barnard carries out the first heart transplant on a human (53-year-old Louis Washkansky).
When copying data from this family tree, please include a reference to the origin: Pauline Berens BC, "Local Heritage Book Barger-Compascuum", database, Genealogy Online (https://www.genealogieonline.nl/ofb-barger-compascuum/I66502.php : accessed March 13, 2026), "Leffert Hoogenberg (1920-1967)".
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