I think its Delaware, Pennsylvania, and New Jersey.
The United States Constitution was ratified by unanimous vote from Delaware, Georgia, and New Jersey.
An amendment may become part of the US Constitution on ratification. Ratification requires that three fourths of the states vote for the amendment in their state legislatures.
The ratification of the constitution was signed on May 29, 1790. The ratification process had began three years earlier in Rhode Island.
three
Ratification by the three-fourths of the state legislatures
Ratification by the three-fourths of the state legislatures
Ratification by the three-fourths of the state legislatures
Ratification by the three-fourths of the state legislatures
Ratification by the three-fourths of the state legislatures
Ratification by the three-fourths of the state legislatures
Ratification by the three-fourths of the state legislatures
- Article. V."when ratified by the Legislatures of three fourth of the several states, or by Conventions in three fourths thereof, as the one of the other Mode of Radification may be proposed by the Congress;"... so in the ratification of amendments in the constitution