The temperature on April 16, 1967 was between 3.9 °C and 10.3 °C and averaged 7.5 °C. There was 0.9 hours of sunshine (6%). The partly or heavily clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the north-northeast. Source: KNMI
January 14 » Counterculture of the 1960s: The Human Be-In takes place in San Francisco, California's Golden Gate Park, launching the Summer of Love.
February 13 » American researchers discover the Madrid Codices by Leonardo da Vinci in the National Library of Spain.
March 26 » Ten thousand people gather for one of many Central Park be-ins in New York City.
June 14 » Mariner program: Mariner 5 is launched towards Venus.
June 26 » Karol Wojtyła (later John Paul II) made a cardinal by Pope Paul VI.
November 28 » The first pulsar (PSR B1919+21, in the constellation of Vulpecula) is discovered by two astronomers Jocelyn Bell Burnell and Antony Hewish.
When copying data from this family tree, please include a reference to the origin: Bob Smith, "Family tree Smith", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-smith/I9984.php : accessed March 15, 2026), "N.N. Boltze (1967)".
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