January 9 » Hallam Tennyson, 2nd Baron Tennyson, son of the poet Alfred Tennyson, becomes the second Governor-General of Australia.
July 19 » Maurice Garin wins the first Tour de France.
September 11 » The first race at the Milwaukee Mile in West Allis, Wisconsin is held. It is the oldest major speedway in the world.
November 17 » The Russian Social Democratic Labour Party splits into two groups: The Bolsheviks (Russian for "majority") and Mensheviks (Russian for "minority").
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 17 » The Wright brothers make the first controlled powered, heavier-than-air flight in the Wright Flyer at Kitty Hawk, North Carolina.
Christening day September 27, 1903
The temperature on September 27, 1903 was between 6.3 °C and 19.5 °C and averaged 13.3 °C. There was 5.6 hours of sunshine (47%). Source: KNMI
February 14 » The United States Department of Commerce and Labor is established (later split into the Department of Commerce and the Department of Labor).
February 23 » Cuba leases Guantánamo Bay to the United States "in perpetuity".
August 3 » Macedonian rebels in Kruševo proclaim the Kruševo Republic, which exists for only ten days before Ottoman Turks lay waste to the town.
August 18 » German engineer Karl Jatho allegedly flies his self-made, motored gliding airplane four months before the first flight of the Wright brothers.
October 1 » Baseball: The Boston Americans play the Pittsburgh Pirates in the first game of the modern World Series.
December 17 » The Wright brothers make the first controlled powered, heavier-than-air flight in the Wright Flyer at Kitty Hawk, North Carolina.
When copying data from this family tree, please include a reference to the origin: Hans Weening, "Family tree Weening", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-weening/I66470.php : accessed October 10, 2026), "Sietze Mosselaar (1903-)".
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