 Three fundamental documents had governed the territory now known as New Jersey . The first was the Concession and Agreement , which was written in 1665 by the colony 's proprietors Lord John Berkeley and Sir George Carteret , and included a provision granting religious freedom . After Berkeley and Carteret sold New Jersey to the Quakers , the colony was split into West and East Jersey . Each had its own constitution : the West Jersey Constitution ( 1681 ) and the East Jersey Constitution ( 1683 ) . The two were reunited in 1702 by Queen Anne . 
