The Middle Colonies of New York, New Jersey, Pennsylvania, and Delaware were home to diverse religious and ethnic groups including the Dutch, Swedes, Germans, Quakers, Scots-Irish, and various Native American tribes. William Penn founded Pennsylvania in 1681 and sought religious toleration for all, good relations with Native Americans, and encouraged German immigration. The Middle Colonies became the most ethnically and religiously diverse region in the American colonies due to its policy of religious freedom and attraction of diverse immigrant groups.