The first American newspaper was produced in Boston in 1690 called Publick Occurrences. Published without authority, it was immediately suppressed, its publisher arrested, and all copies were destroyed. The first successful newspaper was the Boston News-Letter by postmaster John Campbell in 1704.  Two more papers  in the 1720's, in Philadelphia and New York, and the Fourth Estate slowly became established on the new continent. Near the Revolutionary War, some papers were issued at all the colonies, although Massachusetts, New York, and Pennsylvania would remain the centers of American printing for many years. Writing was supressed for many years by the British until shortly after the war started.