The horse began to become domesticated in 4202 BC.
The men 's 10 miles walk race was held at the 1908 Summer Olympics in London .. 1908 Summer Olympics. 1908 Summer Olympics. London. London. This event was held for the only time .. The competition was held on Thursday , July 16 , 1908 and on Friday , July 17 , 1908 .. The competition was held in two rounds .. There were two heats in the first round , with the top four in each heat advancing to the final .. 25 race walkers from eight nations competed .