July 20 » The Ford Motor Company ships its first automobile.
August 18 » German engineer Karl Jatho allegedly flies his self-made, motored gliding airplane four months before the first flight of the Wright brothers.
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 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 30 » A fire at the Iroquois Theater in Chicago, Illinois kills at least 605.
Day of marriage June 4, 1930
The temperature on June 4, 1930 was between 11.7 °C and 23.6 °C and averaged 17.4 °C. There was 12.8 hours of sunshine (78%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the east-northeast. Source: KNMI
In The Netherlands , there was from August 10, 1929 to May 26, 1933 the cabinet Ruys de Beerenbrouck III, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
March 6 » International Unemployment Day demonstrations globally initiated by the Comintern.
May 24 » Amy Johnson lands in Darwin, Northern Territory, becoming the first woman to fly solo from England to Australia (she left on May 5 for the 11,000 mile flight).
June 21 » One-year conscription comes into force in France.
July 7 » Industrialist Henry J. Kaiser begins construction of Boulder Dam (now known as Hoover Dam).
September 6 » Democratically elected Argentine president Hipólito Yrigoyen is deposed in a military coup.
November 11 » Patent number US1781541 is awarded to Albert Einstein and Leó Szilárd for their invention, the Einstein refrigerator.
When copying data from this family tree, please include a reference to the origin: R.A.Hemerik, "Descendants Hemerik-Broekhuizen-Huner-Koper-Barink", database, Genealogy Online (https://www.genealogieonline.nl/parenteel-hemerik/I51968.php : accessed March 1, 2026), "Frans van Leeuwen (1903-)".
Copy warning
Genealogical publications are copyright protected. Although data is often retrieved from public archives, the searching, interpreting, collecting, selecting and sorting of the data results in a unique product. Copyright protected work may not simply be copied or republished.
Please stick to the following rules
Request permission to copy data or at least inform the author, chances are that the author gives permission, often the contact also leads to more exchange of data.
Do not use this data until you have checked it, preferably at the source (the archives).
State from whom you have copied the data and ideally also his/her original source.