May 31st (1777) was a Saturday. It's the 151st day of the year (152nd in leap years) in the Gregorian calendar. There are 214 days left to the end of the year.
May 31st Holidays in History
» Royal Brunei Land Forces or Anniversary of Royal Brunei Malay Regiment (Brunei)
» Public holidays in Spain Regional holidays known as Castile–La Mancha Day (Castile-La Mancha)
» Christian Calendar of saints or Feast Day:
» Saint Hermias called Hermias
» Saint Petronilla or Petronella
» May 31 (Eastern Orthodox liturgics)
» Visitation (Christian) known as Visitation of Mary (Western Christianity)