Bruno was a mathematician, philosopher, astronomer, occultist, and according to the Catholic church of 16th-century Italy, a heretic. He met a bad end because of his views, but he started out as a friar.
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Stuff You Missed in History Class
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Joseph F. Glidden and the Contentious Invention of Barbed Wire
The SS Andrea Doria Rescue
SYMHC Classics: The Vanishing of Sister Aimee