Japanese Emperor Naruhito (C) and Prime Minister Shinzo Abe (L) attend the emperor's coronation ceremony in the Seiden State Hall at the Imperial Palace in Tokyo, Japan, Oct. 22, 2019. Japanese Emperor Naruhito on Tuesday proclaimed his enthronement in a highly ritualized, ancient-style ceremony held in the Seiden State Hall at the Imperial Palace in Tokyo in front of 2,000 guests from around the world. (Xinhua)