July 1 » Start of first Tour de France bicycle race.
August 2 » The Ilinden–Preobrazhenie Uprising against the Ottoman Empire begins.
November 3 » With the encouragement of the United States, Panama separates from Colombia.
November 18 » The Hay–Bunau-Varilla Treaty is signed by the United States and Panama, giving the United States exclusive rights over the Panama Canal Zone.
December 14 » The Wright brothers make their first attempt to fly with the Wright Flyer at Kitty Hawk, North Carolina.
December 16 » Taj Mahal Palace & Tower hotel in Bombay first opens its doors to guests.
Day of death April 20, 1977
The temperature on April 20, 1977 was between -2.4 °C and 13.1 °C and averaged 7.2 °C. There was -0.1 mm of rain. There was 9.1 hours of sunshine (64%). The partly clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the southwest. Source: KNMI
In The Netherlands , there was from Friday, May 11, 1973 to Monday, December 19, 1977 the cabinet Den Uyl, with Drs. J.M. den Uyl (PvdA) as prime minister.
In The Netherlands , there was from Monday, December 19, 1977 to Friday, September 11, 1981 the cabinet Van Agt I, with Mr. A.A.M. van Agt (CDA/KVP) as prime minister.
January 28 » The first day of the Great Lakes Blizzard of 1977 which dumps 10 feet (3.0m) of snow in one day in Upstate New York, with Buffalo, Syracuse, Watertown, and surrounding areas are most affected.
February 18 » The Space Shuttle Enterprise test vehicle is carried on its maiden "flight" on top of a Boeing 747.
March 4 » The 1977 Vrancea earthquake in eastern and southern Europe kills more than 1,500, mostly in Bucharest, Romania.
September 7 » The Torrijos–Carter Treaties between Panama and the United States on the status of the Panama Canal are signed. The United States agrees to transfer control of the canal to Panama at the end of the 20th century.
September 25 » About 4,200 people take part in the first running of the Chicago Marathon.
When copying data from this family tree, please include a reference to the origin: R.H.C. Tromp, "Family tree Tromp", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-tromp/I730.php : accessed December 24, 2025), "Alida Clasina Valk (1903-1977)".
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