Chakri Dynasty
The bridge opened on 6 April 1932, by King Prajadhipok (Rama VII) in commemoration of the 150th anniversary of the Chakri Dynasty and the foundation of Bangkok, shortly before the Siamese coup d'état of 24 June 1932. In English the bridge is commonly known as Memorial Bridge, however in Thai, it is most commonly known as Phra Phuttayotfa Bridge (สะพานพระพุทธยอดฟ้า), after King Phutthayotfa Chulalok (Rama I), the first king of the Chakri Dynasty. The name is more commonly shortened as Saphan Phut (สะพานพุทธ) or Phut Bridge or Buddha Bridge (meaning: Bridge of Buddha).