The present Municipality, known as the Village of Greenhills, Ohio shall continue to be a body politic and corporate under the name of the Village of Greenhills, with the same boundaries, but with the powers and authority to change its boundaries and annex other territory contiguous thereto in the manner authorized by the laws of the State of Ohio. No territory shall be detached from the Municipality, nor shall the Municipality be annexed to any other Municipality without the consent of a majority of municipal electors voting on such question. Such question shall be submitted to the electors only at a general election in such manner as the Council shall by resolution or ordinance prescribe.