The Democracy of Monument is located in the centre of the circle on Central Ratchadamnoen Avenue.

This monument was built during the Phibulsonggram regime to commemorate the activity of the People's Group which requested the Constitution from the King (King Rama VII) on 24th June, A.D. 1932.

Construction was started in July A.D. 1939 and was completed on 22nd June, A.D. 1940. The inauguration ceremony took place on 24th June, A.D. 1940.