April 2 » The United States Congress passes the Foraker Act, giving Puerto Rico limited self-rule.
May 1 » The Scofield Mine disaster kills over 200 men in Scofield, Utah in what is to date the fifth-worst mining accident in United States history.
June 9 » Indian nationalist Birsa Munda dies of cholera in a British prison.
June 14 » The second German Naval Law calls for the Imperial German Navy to be doubled in size, resulting in an Anglo-German naval arms race.
June 25 » The Taoist monk Wang Yuanlu discovers the Dunhuang manuscripts, a cache of ancient texts that are of great historical and religious significance, in the Mogao Caves of Dunhuang, China.
July 2 » Jean Sibelius' Finlandia receives its première performance in Helsinki with the Helsinki Philharmonic Society conducted by Robert Kajanus.
Day of death May 21, 1988
The temperature on May 21, 1988 was between 0.5 °C and 16.2 °C and averaged 9.7 °C. There was 8.9 hours of sunshine (56%). The partly clouded was. The average windspeed was 1 Bft (weak wind) and was prevailing from the north. Source: KNMI
In The Netherlands , there was from Tuesday, November 4, 1986 to Tuesday, November 7, 1989 the cabinet Lubbers II, with Drs. R.F.M. Lubbers (CDA) as prime minister.
March 13 » The Seikan Tunnel, the longest undersea tunnel in the world, opens between Aomori and Hakodate, Japan.
March 14 » In the Johnson South Reef Skirmish Chinese forces defeat Vietnamese forces in an altercation over control of one of the Spratly Islands.
April 14 » The USSSamuel B. Roberts strikes a mine in the Persian Gulf during Operation Earnest Will.
May 14 » Carrollton bus collision: A drunk driver traveling the wrong way on Interstate 71 near Carrollton, Kentucky hits a converted school bus carrying a church youth group. Twenty-seven die in the crash and ensuing fire.
July 3 » United States Navy warship USSVincennes shoots down Iran Air Flight 655 over the Persian Gulf, killing all 290 people aboard.
December 21 » The first flight of Antonov An-225 Mriya, the largest aircraft in the world.
When copying data from this family tree, please include a reference to the origin: Hendrik de Graaf, "Family tree Plugboer", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-plugboer/I15665.php : accessed February 18, 2026), "Theunis August Böhmer (1900-1988)".
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