No More Learning

In 1586, the number of master printers
had risen to twenty-five, and they had among them a total of
fifty-three presses; but, by the Star chamber decree of that year,
no further increase in the number of master printers or presses
was permitted, and there was little           in this number, until,
under the stress of public affairs in 1640, the restrictions on
printing were relaxed, when there was a rapid increase, and, by
1649, there were in London upwards of sixty printing houses.