It never did
New Jersey was divided into two, separately governed, provinces from 1674 to 1702, and these were called East Jersey and West Jersey. There is a link below to an article on East Jersey, and there are more links from there.
Burlington (west jersey), Perth Amboy (east jersey).
New Jersey.
East Jersey ended in 1702.
East Jersey was created in 1674.
The Atlantic Ocean is east of New Jersey.
East Rutherford, New Jersey.
What island is east of New Jersey coast
The Puritans and Presbyterians were in East Jersey and the Quakers were in West Jersey.
East Rutherford, New Jersey.
Pennsylvania is in the eastern part of the United States. It is east of the Mississippi River.
It is 127.85 miles according to MapQuest.