There were 48 states
AS YOU CAN SEE, NOT MANY STATES JOINED THE SOUTHERN STATES. MANY JOINED THE NORTHERN STATES !
No states joined the union while Franklin Pierce was President.
Hawaii and Alaska (I think)
They joined the United States to fight the Spanish.
Each one of the current 50 states that make up the US joined the Union at some point or another. No states were ever forced to join, and no states were automatic members.
50 ... the same number it has been since Hawaii joined the union in 1959 and still is today in 2009.
There were 48 US States when Alaska joined the Union.
the united states joined in 1917, ww1 started in 1914.!!
The United States eventually joined the war on the side of the Allies - the main states in this alliance, apart from the USA, were Britain (and the Commonwealth), France (they were defeated and surrendered by the time the US entered) and the USSR.
There were already 22 US States when Maine joined the Union.
The state that joined the United States on Halloween day is Nevada and that's why they celebrate their states birthday, and on Halloween. So practically, they have two Halloween days.