When was Liu Bei born?
Liu Bei
As Liu Pi, a former Yellow Turban rebel, started a revolt in Runan Commandery (汝南郡; around present-day Xi County, Henan), Liu Bei convinced Yuan Shao to "lend" him troops to assist Liu Pi. Liu Bei and Liu Pi then led their forces from Runan Commandery to attack Xuchang while Cao Cao was away at Guandu, but they were defeated and driven back by Cao Ren. Liu Bei then returned to Yuan Shao and urged him to ally with Liu Biao, the Governor of Jing Province (covering present-day Hubei and Hunan). Yuan Shao then sent him with some troops to Runan Commandery to assist another rebel leader, Gong Du (共都/龔都). Liu Bei and Gong Du defeated and killed Cai Yang (蔡陽), one of Cao Cao's officers who led troops to attack them.