River Tarmu often changed its course,the most famous event happened in 4th century Since then,many deserted sites appeared along the old path,alor of glorious culture became extinct.

• 塔里木河经常改道，最著名的改道，发生在公元4世纪，那次改道后，塔里木河下游的广大区域里出现了无数废墟，一大批已经非常辉煌的文化就此归于沉寂。