Important Historical Events of the year 1404, Year 1404 in History

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List of 1404 Major News Events in History, Most Important Historical Events in 1404

What happened in the year 1404?

Date	Event
February 12, 1404	The Italian professor Galeazzo di Santa Sophie performed the first post-mortem autopsy for the purposes of teaching and demonstration at the Heiligen–Geist Spital in Vienna.
June 14, 1404	Welsh rebel leader Owain Glyndŵr, having declared himself Prince of Wales, allies himself with the French against King Henry IV of England.