When did the sport of sumo wrestling start?
The Japanese did not have written records until the sometime in the early 700s. Because of this, there is no way of accurately knowing the exact time when sumo wrestling began. However, the earliest recorded mention of it was in a book (Kojiki) in 712 CE. For more information on the history of sumo wrestling, visit http://papa.essortment.com/wrestlingsumoh_rvqp.
