Year 1439 (MCDXXXIX) was a common year starting on Thursday (link will display the full calendar) of the Julian calendar. Events of 1439 May 4 – Battle of Grotnik: The Hussite movement's defeated in Poland. June 29 – supposed date of Venerable Macarius' Miracle of the Moose, according to Russian hagiographers. September 8 – Cardinal Giovanni Vitelleschi captures Foligno, ending Trinci's signoria. November 12 – In England, Plymouth becomes the first town incorporated… (More on 1439)