Maryland Day is a legal holiday in the U.S. state of Maryland. It is observed on the anniversary of the March 25, 1634, landing of the first European settlers in the Province of Maryland, the third English colony to be settled in British North America. On this day settlers from "The Ark" and the smaller "The Dove" first stepped foot onto Maryland soil, at St. Clement's Island in the Potomac River. The settlers were about 150 in number, departed from Gravesend on the Thames River downstream from London. Three Jesuit priests were collected from Cowes on the Isle of Wight in England where they avoided having to give the oath of allegiance and supremacy to the King. The colony's grant was renewed to Cecil Calvert, 2nd Baron Baltimore, (1605-1675), two years prior by Charles I of England, after first being given to his father Sir George Calvert, 1st Baron Baltimore, (1574-1632), along with the title of "Lord Baltimore", and a first grant in Acadia, in Newfoundland, (modern Canada), (title named after lands and town Baltimore, in Ireland) who had served the King in many official and personal capacities as Secretary of State, 1619-1625 (despite his conversion to Roman Catholicism. In thanksgiving for the safe landing, Jesuit Father Andrew White celebrated the Mass for the colonists led by the younger brother of Lord Baltimore, Leonard Calvert, (1606-1647), who served as the first governor, and perhaps for the first time ever in this part of the world on the first landing at Blackistone Island, later known as St. Clement's Island off the northern shore of the Potomac River, which was the new border between the new colony and the earlier English settlements in Virginia) and erected a large cross.