Chulalongkorn Day Description
Commemorates the passing of King Chulalongkorn (Rama V) on October 23, 1910, one of Thailand's most beloved and transformative monarchs. King Chulalongkorn reigned from 1868 to 1910 and is credited with modernizing Siam — abolishing slavery, reforming the administrative and legal systems, building railways and infrastructure, establishing modern education, and skillfully navigating colonial pressures to keep Thailand the only Southeast Asian nation never formally colonized. Thais lay wreaths and offer prayers at the equestrian statue of King Chulalongkorn at the Royal Plaza in Bangkok, as well as at memorials and schools named in his honor nationwide. Government offices, banks, and most businesses close. The day is sometimes called 'Piyamaharaj Day' (the Beloved Great King), and the public outpouring of respect — particularly among older Thais — reflects the enduring legacy of a king who fundamentally shaped modern Thailand.