If it's not a state, then it cannot be a state.
North Carolina was the only state admitted in 1789 (#12). Rhode Island was the only state admitted in 1790 (#13). Vermont was the only state admitted in 1791 (#14). Kentucky was the only state admitted in 1792 (#15). Tennessee was the only state admitted in 1796 (#16). Ohio was the only state admitted in 1803 (#17). Louisiana was the only state admitted in 1812 (#18). Indiana was the only state admitted in 1816 (#19). Mississippi was the only state admitted in 1817 (#20). Illinois was the only state admitted in 1818 (#21). Alabama was the only state admitted in 1819 (#22). Maine was the only state admitted in 1820 (#23). Missouri was the only state admitted in 1821 (#24). Arkansas was the only state admitted in 1836 (#25). Michigan was the only state admitted in 1837 (#26). Iowa was the only state admitted in 1846 (#29). Wisconsin was the only state admitted in 1848 (#30). California was the only state admitted in 1850 (#31). Minnesota was the only state admitted in 1858 (#32). Oregon was the only state admitted in 1859 (#33). Kansas was the only state admitted in 1861 (#34). West Virginia was the only state admitted in 1863 (#35). Nevada was the only state admitted in 1864 (#36). Nebraska was the only state admitted in 1867 (#37). Colorado was the only state admitted in 1876 (#38). Utah was the only state admitted in 1896 (#45). Oklahoma was the only state admitted in 1907 (#46).
Maine.
Is the only state that does not have country?"
Hawaii was the only state to have monarchy.
Maine borders only one state.
Maine borders only one other state.
The only city in the US that is not in a state is Washington, D.C.
AnswerOhio.Ohio.IT IS THE ONLY STATE
Maine is the only state to border only one other state, New Hampshire.
If it's not a state, then it cannot be a state.
Maine is the only state that only borders one other state (New Hampshire).
Tasmania is Australia's only island state.