It was 26 July 1788.
According the U.S. States list (by date of statehood), New York was admitted as the Province of New York as the 11th stateon July 26, 1788.
New York was admitted into the Union on July 26, 1788 becoming the 11th state to join the Union. New York celebrated its 200th anniversary during 1988.
New York was admitted to the Union on July 26
New York applied for statehood on July 26, 1788. Before it was a state it was known as the Province of New York.
On July 26, 1788 New York became the 11th state to gain statehood.
The state of New York achieved statehood (joined the union) in July 26th, 1788.
New York was the 11th US State.
By accepting the US Constitution.
New York became the 11th State July 26th 1788
New York became the 11th US State on 26 July 1788.
Prior to statehood, New York was one of the 13 Colonies.
New York became a state on July 26, 1788, the 11th state to be admitted to the Union.