January 13 » Émile Zola's J'accuse…! exposes the Dreyfus affair.
April 25 » Spanish–American War: The United States declares war on Spain.
June 17 » The United States Navy Hospital Corps is established.
August 11 » Spanish–American War: American troops enter the city of Mayagüez, Puerto Rico.
August 12 » The Hawaiian flag is lowered from ʻIolani Palace in an elaborate annexation ceremony and replaced with the flag of the United States to signify the transfer of sovereignty from the Republic of Hawaii to the United States.
August 28 » Caleb Bradham's beverage "Brad's Drink" is renamed "Pepsi-Cola".
Day of marriage April 7, 1928
The temperature on April 7, 1928 was between 0.7 °C and 13.7 °C and averaged 8.5 °C. There was 0.1 mm of rain. There was 10.3 hours of sunshine (77%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the east-southeast. Source: KNMI
May 3 » The Jinan incident begins with the deaths of twelve Japanese civilians by Chinese forces in Jinan, China, which leads to Japanese retaliation and the deaths of over 2,000 Chinese civilians in the following days.
August 27 » The Kellogg–Briand Pact outlawing war is signed by fifteen nations. Ultimately sixty-one nations will sign it.
September 1 » Ahmet Zogu declares Albania to be a monarchy and proclaims himself king.
October 2 » The "Prelature of the Holy Cross and the Work of God", commonly known as Opus Dei, is founded.
October 12 » An iron lung respirator is used for the first time at Children's Hospital, Boston.
November 1 » The Law on the Adoption and Implementation of the Turkish Alphabet, replaces the Arabic alphabet with the Latin alphabet.
When copying data from this family tree, please include a reference to the origin: J. Ham, "Family tree Ham", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-ham/I40274.php : accessed January 24, 2026), "Katharinus Boersma (1898-????)".
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