January 17 » The United States takes possession of Wake Island in the Pacific Ocean.
January 19 » Anglo-Egyptian Sudan is formed.
February 2 » The Australian Premiers' Conference held in Melbourne decides to locate Australia's capital city, Canberra, between Sydney and Melbourne.
May 8 » The Irish Literary Theatre in Dublin produced its first play.
July 26 » Ulises Heureaux, the 27th President of the Dominican Republic, is assassinated.
September 13 » Henry Bliss is the first person in the United States to be killed in an automobile accident.
Day of death May 13, 1960
The temperature on May 13, 1960 was between 11.2 °C and 24.1 °C and averaged 16.3 °C. There was 4.0 mm of rain during 1.6 hours. There was 1.1 hours of sunshine (7%). The heavily clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the east-northeast. Source: KNMI
When copying data from this family tree, please include a reference to the origin: Dirk Kalksma, "Family tree Kalksma", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-kalksma/I528.php : accessed March 16, 2026), "Pieter Johannes Wytze Kalksma (1899-1960)".
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