The Phudaisawan Sword Training Center was

very famous in that era, and it had many pupils. They were trained with wicker
swords in the arts of sword and pole fighting. They were also trained to fight
barehanded and thus learned MuayThai skills. In addition to fighting, such
training centers also gave education in everyday matters.
King Naresuan The Great Era (B.E. 2133-2147, 1590-1604 CE)
King Naresuan would call for young men of his age to train with him. They
were trained to be brave, self-confident warriors. They had to be skilful with all
weapons and in boxing. King Naresuan set up the Scouting Corps to fight in
guerrilla warfare. It was this Corps of soldiers that were able to free Thailand from
Burma during this time.