The Manx Parliament is called Tynwald. It has Viking origins and has existed for over 1,000 years. The House of Keys is the Lower Branch of Tynwald and consists of 24 Members; the Legiisletive Council is the Upper Branch of Tynwald and has eleven Members. The Presidente of Tynwald presdes over both Branches when they meet together as Tynwald. General Elections take place every 5 years. To be eligible to vote you must have lived on the Island for at least twelve mounts prior to the 12 May in the year of an election.