The First Constitutional Era (; ) of the Ottoman Empire was the period of constitutional monarchy from the promulgation of the Kanûn-i Esâsî (meaning "Basic Law" or "Fundamental Law" in Ottoman Turkish), written by members of the Young Ottomans, on 23 November 1876 until 13 February 1878. The era ended with the suspension of the Ottoman parliament and the constitution by sultan Abdülhamid II, with which he restored his own absolute monarchy.