In March, 1639, according to Winthrop, the printing house was begun at Cambridge, the first things printed being the Freeman's Oath, probably on a single sheet, and an Almanach made for New England by Mr. William Peirce, mariner. Neither of these publications is known to be extant.
A bit of a slog through poor grammar, oddly translation from a foreign tongue, and old, really old English. But, hey, this is an historic book and a facsimile of the first book printed in the US of A, in 1640.