Henry VII of England issues letters patent to
John Cabot and his sons, authorizing them to discover unknown lands.ref name=Cassell's Chronology{{cite book|last=Williams|first=Hywel|title=Cassell's Chronology of World History|location=London|publisher=Weidenfeld Nicolson|year=2005|isbn=0-304-35730-8|pages=189–192}}