an lushan (安祿山) or kang yaluoshan (康軋犖山) or ܪܘܚܫܐܢ (roxsan) in sogdian or göktütk was a general and military governor in the tang army, and he rebelled against the tang and formed his own yan dynasty. millions of tang chinese died in the rebellion. after 6.9 years his dynasty collapsed, and tang...