In Events:
| May 17th 0218 | | 7th recorded perihelion passage of Halley's Comet
| | May 17th 0352 | | Liberius begins his reign as Catholic Pope replacing Julius I
| | May 17th 0884 | | St Adrian III begins his reign as Catholic Pope
| | May 17th 1525 | | Battle at Zabern: duke of Lutherans beats rebels
| | May 17th 1527 | | P nfilo de Narva‚z departs to explore Florida
| | May 17th 1536 | | Anne Boleyns 4 "lovers" executed
| | May 17th 1544 | | Scot earl Matthew van Lennox signs secret treaty with Henry VIII
| | May 17th 1579 | | Artois/Henegouwen/French-Flanders sign Treaty/Peace of Parma recognizing Spanish duke van Parma as land guardian
| | May 17th 1620 | | 1st merry-go-round seen at a fair (Philippapolis, Turkey)
| | May 17th 1630 | | Italian Jesuit Niccolo Zucchi, 1st to see 2 belts on Jupiter surface
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In Births:
| May 17th 1444 | | Sandro Botticelli, Italian painter (Birth of Venus)
| | May 17th 1451 | | Engelbert II, earl of Nassau-Dillenburg-Dietz/viceroy of Luxembourg
| | May 17th 1490 | | Albrecht von Hohenzollern, 1st duke of Prussia
| | May 17th 1551 | | Martinus A del Rio, Spanish/South Neth lawyer/historian/theologist
| | May 17th 1568 | | Christoph Thomas Walliser, composer
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In Deaths:
| May 17th 1050 | | Guido van Arezzo, Italian music theorist, dies
| | May 17th 1510 | | Alessandro di Botticelli, painter (Birth of Venus), dies at about 65
| | May 17th 1510 | | Sandro Botticelli, [Alessandro di Mariano del Filpepi], painter, dies
| | May 17th 1575 | | Matthew Parker, archbishop of Canterbury (1559-75), dies at 68
| | May 17th 1591 | | Jost/Jobst/Jodocus Amman, Swiss cartoonist/graphic artist, dies at 51
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