original: in 1845 it joined the united states as the 28th state .
simplifications: in 1845 it joined the united states as the 28th state . in 1845 it joined the united states as the 28th state . in 1845 it joined the united states as the 28th state . in 1845 it was included to the united states as the 28th state . in 1845 , it joined the united states as the 28th state . in 1845 , it joined the united states as the 28th state . in 1845 it joined the united states as the 28th state . in 1845 , it joined the united states as the 28th state .