The date was December 12,1787. It was more a case of Pennsylvania agreeing to join that of being admitted to the union since the union had only one state when PA joined
did pennsylania have slavery
I believe it was by the president at the time it was admitted into the union.
Idaho was admitted to the Union on 7-3-1890
50 states have been admitted to the U.S. union.
Arizona was admitted to the union on Feb 14, 1912.
Wisconsin was admitted to the Union in 1848 as the 30th state.
Florida was the 27th state admitted to the Union.
Indiana was admitted to the Union on December 11, 1816 by President James Madison.Indiana was admitted to the Union on December 11, 1816.
Florida was admitted to the Union on March 3, 1845, as the 27th state.
There is no limit to the number of states that may be admitted to the Union.
Jamestown was admitted in the union the year i had you with your mom =D
The fifteenth state. it was admitted to the union in June 1,1792