The Kingdom of Saudi Arabia celebrates the National Day for the Unification of the Kingdom on September 23 every year. This date goes back to the royal decree issued by the founding King Abdulaziz No. 2716, dated 17 Jumada al-Awwal 1351 AH, which decided to transfer the name of the state from the Kingdom of Hijaz and Najd and its annexes to the Kingdom of Saudi Arabia, starting on Thursday, 21 Jumada al-Awwal 1351 AH corresponding to the first. From Libra, corresponding to September 23, 1932 AD.