February 15 » The association football club Alianza Lima is founded in Lima, Peru, under the name Sport Alianza.
March 2 » The U.S. Congress passes the Platt Amendment limiting the autonomy of Cuba, as a condition of the withdrawal of American troops.
March 2 » United States Steel Corporation is founded as a result of a merger between Carnegie Steel Company and Federal Steel Company which became the first corporation in the world with a market capital over $1 billion.
July 4 » William Howard Taft becomes American governor of the Philippines.
September 28 » Philippine–American War: Filipino guerrillas kill more than forty American soldiers while losing 28 of their own.
December 3 » In a State of the Union message, U.S. President Theodore Roosevelt delivers a 20,000-word speech to the House of Representatives asking Congress to curb the power of trusts "within reasonable limits".
Day of death May 17, 1971
The temperature on May 17, 1971 was between 11.4 °C and 21.1 °C and averaged 14.7 °C. There was 14.5 mm of rain during 4.6 hours. There was 1.2 hours of sunshine (8%). The heavily clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the southwest. Source: KNMI
February 9 » The 6.5–6.7 Mw Sylmar earthquake hits the Greater Los Angeles Area with a maximum Mercalli intensity of XI (Extreme), killing 64 and injuring 2,000.
March 29 » My Lai Massacre: Lieutenant William Calley is convicted of premeditated murder and sentenced to life in prison.
July 12 » The Australian Aboriginal Flag is flown for the first time.
August 15 » Bahrain gains independence from the United Kingdom.
August 15 » President Richard Nixon completes the break from the gold standard by ending convertibility of the United States dollar into gold by foreign investors.
November 10 » In Cambodia, Khmer Rouge forces attack the city of Phnom Penh and its airport, killing 44, wounding at least 30 and damaging nine aircraft.
When copying data from this family tree, please include a reference to the origin: W. Rovers, "Family tree Ro(o)vers", database, Genealogy Online (https://www.genealogieonline.nl/stamboom_rovers/I10899.php : accessed February 18, 2026), "Jacobus Antonius Josephus "Jacques" Knaapen (1901-1971)".
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