The temperature on June 7, 1909 was between 2.5 °C and 15.5 °C and averaged 10.3 °C. There was 5.4 hours of sunshine (33%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the northwest. Source: KNMI
January 25 » Richard Strauss's opera Elektra receives its debut performance at the Dresden State Opera.
February 12 » New Zealand's worst maritime disaster of the 20th century happens when the SSPenguin, an inter-island ferry, sinks and explodes at the entrance to Wellington Harbour.
April 18 » Joan of Arc is beatified in Rome.
July 25 » Louis Blériot makes the first flight across the English Channel in a heavier-than-air machine from Calais to Dover, England, United Kingdom in 37 minutes.
August 19 » The first automobile race at the Indianapolis Motor Speedway.
September 23 » The novel Le Fantôme de l'Opéra (The Phantom of the Opera), by Gaston Leroux, is published as a serialization in Le Gaulois.
When copying data from this family tree, please include a reference to the origin: Hilbert Botter, "Family tree Botter", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-botter/I2810.php : accessed January 23, 2026), "Johan Georg Koekoek (1909-)".
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