How many states were ratified in 1788?

Eleven states ratified the US Constitution in 1788. They were:

Georgia on January 2, 1788

Connecticut on January 9, 1788

Massachusetts on February 6, 1788

Maryland on April 28, 1788

South Carolina on May 23, 1788

New Hampshire on June 21, 1788

Virginian on June 26, 1788

New York on July 27, 1788