Historical Events
- May 22 France, England & Netherlands sign "Hedges Concerto" treaty
- May 25 Richard Cromwell resigns as Lord Protector of England, earning the nickname "Tumbledown Dick" as a result of his abrupt fall from power
- May 31 Netherlands, England and France sign Treaty of The Hague
Famous Birthdays
- May 16 Campegius Vitringa, Dutch theologist
