Proper noun
Thirteen Colonies
(historical) The thirteen British colonies that successfully revolted in 1775--1781, forming the nucleus of the United States of America. To wit: New Hampshire, Massachusetts (including present-day Maine), Rhode Island, Connecticut, New York (including present-day Vermont), New Jersey, Pennsylvania, Maryland, Delaware, Virginia (including present-day West Virginia), North Carolina, South Carolina, and Georgia.
There is one Resolution I will not omit. Resolved that no Slaves be imported into any of the thirteen colonies. John Adams
I believe that almost all politicians are honest. For every bribed alderman there are hundreds of politicians, low paid or not paid at all, doing their level best without thanks or glory to make our system work. If this were not true, we would never have gotten past the thirteen colonies. Robert A. Heinlein
Additionally, the Governor also reported a privateering boom in the Thirteen Colonies in North America. Source: Internet
Historian Pauline Maier identified more than ninety such declarations that were issued throughout the Thirteen Colonies from April to July 1776. Source: Internet
In 1766 Barrington had recommended withdrawing the army from the Thirteen Colonies to Canada, Nova Scotia and Florida. Source: Internet
The settlers were mostly English speakers, including Loyalists from the Thirteen Colonies, and also the Six Nations of the Iroquois, who had been British allies during the war. Source: Internet