But, how it got to China is pretty unclear. We know that the date of it was during the Han Dynasty, but there's only rumors of how it happened.
What I heard from town was that our emperor Ming Ti had a dream and sent people down to the Silk Road to try to see what it meant. When they returned, they had a picture of the Buddha and some texts.
The first Buddhist community was said to have come about around 150 AD. From then on, it spread like wildfire!