One of the most important rivers in the world, The Mekong starts high in the Tibetan Plateau, then runs through Yunnan, Myanmar, Laos, Thailand, Cambodia, and Vietnam... Ending here in South Vietnam, where the Delta flows into the South China Sea. The Mekong is such an important part of life for so many in South East Asia...
《弟子规》 was formerly known as 《训蒙文》, written by 李毓秀.
The official English book name is 'Standards for Being a Good Student and Child', so... you know what was it used for...
Hope this can helps you out.