The term 'OLD ASIAN KINGDOM' can be summarized by two crossword solutions: Siam (4 letters) and Elam (4 letters). Siam was an ancient kingdom located in what is now Thailand, and was known for its powerful military and strong economy. Elam was an ancient kingdom located in what is now Iran, and was known for its advanced culture and art. Both of these kingdoms were important powers in the ancient world and have left a lasting legacy.