The French and Indian War, which filled the pockets of New York's merchant class, ended with the Treaty of Paris in 1763. Almost immediately, the King of England, who had waged the expensive war, reevaluated the crown's relationship to the colonies and decided that they should be partly responsible for their own upkeep, particularly in sharing the cost of their defense.
The Navigation Acts were passed by Parliament, which effectively restricted trade between the colonies and the Mother Country. New York had developed multiple trading partnerships and its economy depended greatly on the West Indies. The city fell into a depression even worse than the one suffered in the 1730's. To make matters worse, the Royal Navy began impressing seamen from town into service and tensions intensified between the military and the citizenry.
Then, in 1765, the Stamp Act was passed, which levied fees for almost fifty different kinds of business transactions, including liquor licenses, college diplomas, and the purchase of playing cards For almost three weeks in October, twenty-seven delegates from nine colonies met in New York City (at what would become Federal Hall on Wall Street) to prepare a united front against the stamps sailing from England.
On November 1st, when the Stamp Act went into effect, flags were flown at half mast, businesses were closed, and two thousand New Yorkers marched to governor's mansion at Bowling Green where they hanged and burned the governor in effigy.
This governor kept the stamps secure, but did not press them upon the angry mob. The next governor chose to pressure the businesses and forbade any transaction until the mob conceded. This was devastating and fueled anti-British sentiment, most evident in the surging popularity of the newly formed Sons of Liberty.
In the Spring of 1765, the Stamp Act was repealed, but in 1767, the British, still in need of money to help pay for that costly war, passed the Townshend Acts which again taxed without representation and additionally restricted colonial self-government.
England considered that Stamp Act Congress a worrying development.
The Revolution was a decade away.
ALSO DURING THIS DECADE:
Trinity Church's Church Farm is surveyed and mapped into real estate lots. This is the area on the west side that stretches between Cortlandt and Christopher Streets--from present-day Tribeca into Greenwich Village.
1766--St. Paul's Chapel (the oldest building in continual use in Manhattan) opens.
1766--The Morris-Jumel Mansion (Manhattan's oldest house) is built as a summer home for Lt. Col. Roger Morris and his wife. It will be used as a headquarters by Washington in 1776.
Sources: Gotham by Edwin G. Burrows and Mike Wallace; Manhattan in Maps by Robert T. Augustyn and Paul E. Cohen; The Historical Atlas of New York City by Eric Homberger; New York: An Illustrated History by Ric Burns and James Sanders, with Lisa Ades.