Today – April 23

#POTUS #SCIENCE #OTD

Today’s Notable Birthdays

Notable U. S. Birthday

James Buchanan – 15th President of the United States

English: I took photo of James Buchanan in Nat...
English: Photo of James Buchanan in National Portrait Gallery. Public domain. (Photo credit: Wikipedia)

James Buchanan, Jr. (April 23, 1791 – June 1, 1868) was the 15th President of the United States from 1857–1861 and the last to be born in the 18th century.  To date he is the only President from the state of Pennsylvania and the only to remain a lifelong bachelor.

Wikipedia – The Free Encyclopedia

Civil War Cycle – Era of Good Feeling – First Turning, High (1788-1821)
Revolutionary War Cycle – Compromise Generation – Artist (Adaptive) (1767-1791)


Notable Foreign Birthdays

Note:  Today is traditionally the day we commemorate William Shakespeare‘s birthdate.  Since this date is a matter of some speculation, in this Blog, The Bard will be listed on the day of his baptism, April 26.

o  o  o  o  o

Max Planck – Influential 20th Century German physicist.

December 14, 1900: Max Planck presents the fir...
December 14, 1900: Max Planck presents the first paper on quantum mechanics, to the German Physical Society (Photo credit: Wikipedia)

Karl Ernst Ludwig Marx Planck, better known as Max Planck (April 23, 1858 – October 4, 1947) was a German physicist. He is considered to be the founder of the quantum theory, and one of the most important physicists of the twentieth century.

Wikipedia – The Free Encyclopedia

U. S. Contemporaries: Civil War Cycle – Progressive Generation – Artist (Adaptive) (1843-1859)

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