Because they both have the word "new" in there name.
1664
New Jersey was a royal colony and New York was a proprietary colony. They both were colonies and They both have New in their names.
New York, New Jersey, Delaware and, Pennsylvania
Yes, New York, New Jersey, Pennsylvania, and Delaware
New Jersey
propitary new Netherlands was proprietary NY was royal
New Netherland
new jersey Pennsylvania
New York
either Pennsylvania, new york, or new jersey
New Jersey was founded in 1664, by James, the duke of York
New Netherland (now New Jersey) and New Amsterdam (now New York).