King Ramkhamhaeng He was the King of the Phra Ruang Dynasty, Sukhothai. Or another name that not many people know is King Rammarat, who had the ability to initiate the invention of the Thai alphabet to replace the Khmer alphabet that had been used in the past, called " Thai lettering"

          King Ramkhamhaeng the Great's Day falls on January 17 every year. Today occurred after December 1988, Sukhothai Provincial Council Office A letter has been submitted to the Prime Minister. Request that November 17th of every year be designated as "Father Khun Ramkhamhaeng the Great's Day".Because it is the day His Majesty King Ramathibodi Srisin Maha Vajiralongkorn His Majesty King Vajiralongkorn While holding the royal title of Crown Prince crown prince His Majesty traveled to perform the Royal Inauguration Ceremony. Monument to King Ramkhamhaeng the Great in 1983

         But at a later time National Identity Committee Committee to clean up Thai history and organize historical and archaeological documents Considered setting new important historical dates. According to historical evidence, it has been suggested that "King Ramkhamhaeng the Great's Day" should be on January 17, which is the day His Majesty King Mongkut He found the stone inscription of King Ramkhamhaeng the Great in 1833 and presented it to the Cabinet meeting. that has been considered and approved 

Therefore, the 17th of January of every year is designated as "Father Khun Ramkhamhaeng the Great's Day"

                        Information by the Department of Children and Youth Affairs (17 January, King Ramkhamhaeng the Great's Day)

                        Media design by the public relations department Samut Songkhram Campus Office