The Treaty of London, signed by the British Government and the Emir of Transjordan on 22 March 1946, recognised the independence of Transjordan upon ratification by both countries' parliaments. On 25 May 1946, the day that the treaty was ratified by the Transjordan parliament, Transjordan was raised to the status of a kingdom under the name of the ''Hashemite Kingdom of Transjordan'', with Abdullah as its first king. The name was shortened to the ''Hashemite Kingdom of Jordan'' on 26 April 1949. 25 May is now celebrated as the nation's Independence Day, a public holiday. Jordan became a member of the United Nations on 14 December 1955.