After being approved by Congress and before the final date for ratification proposed in the amendment.
by approval of state legislature or by special state convnetions.
This was known as the Women's Suffrage Amendment, and it gave women the right to vote in America.
Look to the document. Amendments are ratified according to the rules set forth in the document being amended, or in statutes or regulations, depending upon what it is you are trying to amend....
it was proposed in 3/21/1947 ratifed 2/27/1951