In 1681, Penn settled Pennsylvania under a royal charter and thus the whole Atlantic coast from Canada to Florida became subject to England. During the colonial period, England contributed to the population of the colonies. But, by the middle of the seventeenth century, the coming of the English to New England was practically over. From 1628 to 1641 about 20,000 came from England to New England, but for the next century and a half more persons went back to Old England than came from there to New England.[7] Due to the relaxing of religious persecution of dissenting Protestants in England, the great formerly impelling force to seek a new home across the ocean in America had ceased. In 1653 an Irish immigration to New England, much larger in numbers than the original Plymouth Colony, was proposed. Bristol merchants, who realized the necessity of populating the colonies to make them prosperous, treated with the government for men, women and girls to be sent to the West Indies and to New England.[8] At the very fountain head of American life we find, therefore, men and women of pure Celtic blood from the South of Ireland, infused into the primal stock of America. But these apparently were only a drop in this early tide of Irish immigration.[9] No complete memorial has been transmitted of the emigrations that took place from Europe to America, but (from the few illustrative facts actually preserved) they seem to have been amazingly copious. In the years 1771-72, the number of emigrants to America from the North of Ireland alone amounted to 17,350. Almost all of these emigrated at their own charge; a great majority of them were persons employed in the linen manufacture, or farmers possessed of some property which they converted into money and carried with them. Within the first fortnight of August, 1773, there arrived at Philadelphia 3,500 emigrants from Ireland, and from the same document which has recorded this circumstance it appears that vessels were arriving every month freighted with emigrants from Holland, Germany, and especially from Ireland and the Highlands of Scotland.[10]