The Siamese Kingdom, also known as Siam, was a historical kingdom located in Southeast Asia, primarily in what is now Thailand. It existed from the 13th century until the early 20th century, playing a significant role in regional trade and culture. The kingdom was known for its rich traditions, including art, architecture, and the development of a unique legal system. During its history, the Siamese Kingdom underwent various transformations, including modernization efforts in the late 19th century under King Chulalongkorn. The kingdom officially changed its name to Thailand in 1939, marking a new era in its national identity. The legacy of the Siamese Kingdom continues to influence Thai culture today.