The temperature on May 10, 1889 was about 18.0 °C. The air pressure was 12 kgf/m2 and came mainly from the east-southeast. The airpressure was 76 cm mercury. The atmospheric humidity was 65%. Source: KNMI
January 15 » The Coca-Cola Company, then known as the Pemberton Medicine Company, is incorporated in Atlanta.
January 30 » Archduke Crown Prince Rudolf of Austria, heir to the Austro-Hungarian crown, is found dead with his mistress Baroness Mary Vetsera in the Mayerling.
March 23 » The Ahmadiyya Muslim Community is established by Mirza Ghulam Ahmad in Qadian, British India.
March 31 » The Eiffel Tower is officially opened.
June 26 » Bangui is founded by Albert Dolisie and Alfred Uzac in what was then the upper reaches of the French Congo.
September 28 » The General Conference on Weights and Measures (CGPM) defines the length of a meter.
When copying data from this family tree, please include a reference to the origin: Ruud Heemskerk, "Heemskerk door de eeuwen heen", database, Genealogy Online (https://www.genealogieonline.nl/heemskerk-door-de-eeuwen-heen/R1250.php : accessed May 5, 2025), "Adrianus (Arie) (Adrianus (Arie)) van Nierop (1889-????)".
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