The temperature on May 31, 1912 was between 5.7 °C and 20.9 °C and averaged 13.8 °C. There was 11.8 hours of sunshine (72%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the northeast. Source: KNMI
January 6 » German geophysicist Alfred Wegener first presents his theory of continental drift.
January 23 » The International Opium Convention is signed at The Hague.
February 25 » Marie-Adélaïde, the eldest of six daughters of Guillaume IV, becomes the first reigning Grand Duchess of Luxembourg.
March 5 » Italo-Turkish War: Italian forces are the first to use airships for military purposes, employing them for reconnaissance behind Turkish lines.
May 8 » Paramount Pictures is founded.
October 14 » Former president Theodore Roosevelt is shot and mildly wounded by John Flammang Schrank. With the fresh wound in his chest, and the bullet still within it, Roosevelt delivers his scheduled speech.
Day of death July 28, 1991
The temperature on July 28, 1991 was between 12.0 °C and 26.8 °C and averaged 20.9 °C. There was 13.8 hours of sunshine (88%). The almost cloudless was. The average windspeed was 2 Bft (weak wind) and was prevailing from the east. Source: KNMI
In The Netherlands , there was from Tuesday, November 7, 1989 to Monday, August 22, 1994 the cabinet Lubbers III, with Drs. R.F.M. Lubbers (CDA) as prime minister.
January 13 » Soviet Union troops attack Lithuanian independence supporters in Vilnius, killing 14 people and wounding around 1000 others.
January 17 » Gulf War: Operation Desert Storm begins early in the morning as aircraft strike positions across Iraq, it is also the first major combat sortie for the F-117. LCDR Scott Speicher's F/A-18C Hornet from VFA-81 is shot down by a Mig-25 and is the first American casualty of the War. Iraq fires eight Scud missiles into Israel in an unsuccessful bid to provoke Israeli retaliation.
May 26 » Lauda Air Flight 004 breaks apart in mid-air and crashes in the Phu Toei National Park in Thailand, killing all 223 people on board.
August 25 » The Battle of Vukovar begins. An 87-day siege of Vukovar by the Yugoslav People's Army (JNA), supported by various Serb paramilitary forces, between August and November 1991 (during the Croatian War of Independence).
October 1 » Croatian War of Independence: The Siege of Dubrovnik begins.
October 4 » The Protocol on Environmental Protection to the Antarctic Treaty is opened for signature.
When copying data from this family tree, please include a reference to the origin: Louis Kramer, "Kramer Family Tree", database, Genealogy Online (https://www.genealogieonline.nl/kramer_stamboom/I601490.php : accessed March 16, 2026), "Ralph James van Zyl (1912-1991)".
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