Qatar's culture is similar to other countries in Eastern Arabia, being significantly influenced by Islam. Qatar National Day, hosted annually on 18 December, has had an important role in developing a sense of national identity. It is observed in remembrance of Jassim bin Mohammed Al Thani's succession to the throne and his subsequent unification of the country's various tribes. Since 1 July 2008, Hamad Bin Abdulaziz Al-Kawari has been the Minister for Culture, Arts and Heritage of Qatar.