The Persians and Greeks used fencing for practicing sword fighting. They did fencing to not hurt anyone but still practice fighting with swords. Fencing is like using a sword that bends lots.
Today at the Modern Olympics there is a buzz noise for when to start and when the match has finished and in the old Olympics there were no buzzing noises. In the old days they had to do it outside and in these days they do it inside places. In the olden days the swords were heavy and In the modern days they’re lighter.
Competing in fencing people use different swords for different types of fencing. Epee Is the sword that you can hit your opponent anywhere on the body. Saber Is the sword that you can hit your opponent above the belt. Foil is the sword that you can only hit your opponent on the chest.