Cuju is recognized by FIFA as the earliest form of what sport?
The earliest form of soccer is believed to be the ancient Chinese game of cuju, which appeared as early as 2500 BCE. The game involved kicking a leather ball into a net. Players were allowed to use their feet, chest, back, and shoulders — but not their hands — much like in the rules of modern soccer. The game, whose name translates to "kickball," prospered during the Han dynasty from 200 BCE to 220 CE.
Source: Seeker