One year later (1620) the Puritans landed at Plymouth Rock, bringing with them stern religious convictions and severe morals which soon ripened into written laws and were likewise woven into social, political, and religious life, the resultant effect of which, on human existence in America, is never to end. One year later still, cotton was first planted in the virgin soil of America, where it grew to perfection, and thenceforth becoming the staple production, made slavery and slave-breeding profitable to the slaveholder.( 7) The earliest importation of negro slaves into New England was to Providence Isle in the shp _Desire_ (1637). From Boston, Mass. (1645), the first American ship from the colonies set sail to engage in the stealing of African negroes. Massachusetts then held, under sanction of law, a few blacks and Indians in bondage.( 8) But slavery did not flourish in New England. It was neither profitable nor in consonance with the judgment of the people generally. The General Court of Massachusetts, as early as 1646, "bearing witness against the heinous crimes of man-stealing, ordered the recently imported negroes to be restored, at the public charge, to their native country, with a _letter_ expressing the indignation of the General Court." Unfortunately, persons guilty of stealing men could not be tried for crimes committed in foreign lands. But the African slave trade, early found to be extremely profitable, and hence popular, did not cease. England, then as now, the most enterprising of commercial nations on the high seas, engrossed the trade, in large part, from 1680 to 1780. In 1711, there was established a slave depot in New York City on or near what is now Wall Street; and about the same time a depot was established for receiving slaves in Boston, near where the old Franklin House stood. From New England ships, and perhaps from others, negroes were landed and sent to these and other central slave markets. But few of these freshly stolen negroes were sold to Northern slaveholders. Slave labor was not even then found profitable in the climate of the North. The bondsman went to a more southern clime, and to the cotton, rice, and tobacco fields of the large plantations of the South. As late as 1804-7, negroes from the coast of Africa were brought to Boston, Bristol, Providence, and Hartford to be sold into slavery. Shipowners of all the coast colonies, and later of all the coast States of the United States, engaged in the slave trade. But it was among the planters of Maryland, Virginia, and the Carolinas that slaves proved to be most profitable. The people in these sections were principally rural; plantations were large, not subject to be broken up by frequent partition, if at all. The crops raised were better suited to cultivation by slaves in large numbers; and the hot climate was better adapted to the physical nature of the African negro.