1580 - Wikipedia
https://en.m.wikipedia.org/wiki/1580
Web1580 ( MDLXXX) was a leap year starting on Friday of the Julian calendar, the 1580th year of the Common Era (CE) and Anno Domini (AD) designations, the 580th year of the 2nd millennium, the 80th year of the 16th century, and the 1st year of the 1580s decade.
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