New York is a state in the Mid-Atlantic and Northeastern regions of the United States of America (often referred to as The City That Never Sleeps.) With 62 counties, it is the country's third most populous state. New York was one of the original thirteen colonies that became the United States. It was the 11th state to ratify the United States Constitution, on July 26, 1788, its own constitution was enacted in 1777. It is bordered by Vermont, Massachusetts, Connecticut, New Jersey, and Pennsylvania, and shares a water border with Rhode Island as well as an international border with the Canadian provinces of Quebec and Ontario. Its five largest cities are New York City (also the largest city in the United States), Buffalo, Rochester, Yonkers, and Syracuse.

New York City is known for its history as a gateway for immigration to the United States and its status as a transportation and manufacturing center.

New York was inhabited by Algonquian, Iroquois, and Lenape indigenous people at the time Dutch and French nationals moved into the region in the very early 17th century. First claimed by Henry Hudson in 1609, the region came to have Dutch forts in Fort Orange, present day Albany, NY, in 1614 and was colonized by the Dutch in 1624, at both Albany and Manhattan; it later fell to British annexation in 1664. About one third of all of the battles of the Revolutionary War took place in New York.

The area was long inhabited by the Lenape; Lenape in canoes met Giovanni da Verrazzano, the first European explorer to enter New York Harbor, in 1524. Giovanni da Verrazzano named this place Nouvelle Angoulême (New Angouleme) in honor of the French king François I. A French explorer and mapper, Samuel de Champlain, described his explorations through New York in 1608. A year later Henry Hudson, an Englishman working for the Dutch, claimed the area in the name of the Netherlands. It was to be called New Amsterdam.

The Dutch, who began to establish trading posts on the Hudson River in 1613, claimed jurisdiction over the territory between the Connecticut and the Delaware Rivers, which they called New Netherlands. The government was vested in "The United New Netherland Company", chartered in 1614, and then in "The Dutch West India Company", chartered in 1622.

In 1649, a convention of the settlers petitioned the "Lords States-General of the United Netherlands" to grant them "suitable burgher government, such as their High Mightinesses shall consider adapted to this province, and resembling somewhat the government of our Fatherland", with certain permanent privileges and exemptions, that they might pursue "the trade of our country, as well along the coast from Terra Nova to Cape Florida as to the West Indies and Europe, whenever our Lord God shall be pleased to permit."

The directors of the West India Company resented this attempt to shake their rule and wrote their director and council at New Amsterdam: "We have already connived as much as possible at the many impertinences of some restless spirits, in the hope that they might be shamed by our discreetness and benevolence, but, perceiving that all kindnesses do not avail, we must, therefore, have recourse to God to Nature and the Law. We accordingly hereby charge and command your Honors whenever you shall certainly discover any Clandestine Meetings, Conventicles or machinations against our States government or that of our country that you proceed against such malignants in proportion to their crimes."

These grants embraced all the lands between the west bank of the Connecticut River and the east bank of the Delaware River.

In 1663 the Duke of York purchased the grant of Long Island and other islands on the New England coast made in 1635 to the Earl of Stirling. The following year, the Duke equipped an armed expedition, which took possession of New Amsterdam, which was thenceforth called New York, after him. This conquest was confirmed by the treaty of Breda, in July 1667. In July 1673, a Dutch fleet recaptured New York and held it until it was restored to the English by the treaty of Westminster in February, 1674.

New York was established by its colonial charter. This constitution was framed by a convention which assembled at White Plains, New York on July 10, 1776, and after repeated adjournments and changes of location, terminated its labors at Kingston, New York on Sunday evening, April 20, 1777, when the constitution was adopted with but one dissenting vote. It was not submitted to the people for ratification. It was drafted by John Jay.

The western part of New York had been settled by the six nations of the Iroquois Confederacy for at least 500 years before Europeans came. The Iroquois had maintained the area between Seneca and Cayuga Lakes as a grassland prairie, which abounded in wild game including grazing American Bison herds. In colonial times, the Iroquois were prosperously growing corn, vegetables and orchards, and keeping cows and hogs; fish were also abundant.

The colonial charter of New York granted unlimited westward expansion, despite Native American presence in the Area. Massachusetts' charter had the same provision, causing territorial disputes between the colonies and with the Iroquois. During the revolution, four of the Iroquois nations fought on the side of the British, with one exception the Oneidas. In 1779, Major General John Sullivan was sent to defeat the Iroquois. The Sullivan Expedition moved northward through the Finger Lakes and Genesee Country, burning all the Iroquois communities and destroying their crops and orchards. Refugees fled to Fort Niagara where they spent the following winter in hunger and misery. Hundreds died of exposure, hunger and disease. After the war, many moved to Canada.

For the Oneida nation's assistance in defeating the British, primarily assisting General Washington's army at Valley Forge, then President Washington while on tour of the Mohawk Valley signed the Treaty of Canandaigua. This Treaty promised the Oneidas among other things a large swath of land from Pennsylvania to Canada, forever. The Treaty was violated in the mid-1800s by New York State. This became the basis for the present land claim dispute.

Transportation in western New York was difficult before canals were built in the early part of the nineteenth century. The Hudson and Mohawk Rivers could be navigated only as far as Central New York. While the St. Lawrence River could be navigated to Lake Ontario, the way westward to the other Great Lakes was blocked by Niagara Falls, and so the only route to western New York was over land. Governor DeWitt Clinton strongly advocated building a canal to connect the Hudson River with Lake Erie, and thus all the Great Lakes. Work commenced in 1817, and the Erie Canal was finished in 1825. The canal opened up vast areas of New York to commerce and settlement, and enabled port cities such as Buffalo to grow and prosper. The Welland Canal was completed in 1972.

Sullivan's men returned from the campaign to Pennsylvania and New England to tell of the enormous wealth of this new territory. Many of them were given land grants in gratitude for their service in the Revolution. From 1786 through 1797 several groups of wealthy land speculators entered into agreements with one another, with neighboring states, and with the Indians to obtain title to vast tracts of land in western New York. Some purchases of Iroquois lands are the subject of numerous modern-day land claims by the individual nations of the six nations.