Trucial States
When the British-Trucial Sheikhdoms treaty expired on 1 December 1971, the Trucial States became independent sheikhdoms. Four more Trucial states (Ajman, Sharjah, Umm Al Quwain and Fujairah) joined Abu Dhabi and Dubai in signing the UAE's founding treaty, with a draft constitution in place drafted in record time to meet the 2 December 1971 deadline. On that date, at the Dubai Guesthouse (now known as Union House), the emirates agreed to enter into a union to be called the United Arab Emirates. Ras al-Khaimah joined in February 1972.