King's sole

It is said that a king was ruling a very large and vast country, and this king wanted one day to go out on a long trip, but his feet swollen and ached during the trip, he walked a lot on rough roads, and therefore he issued a decree stipulating that all the streets of his country be covered with skin, but one of his advisors He was clever, so he gave him a good opinion, which was to put a small piece of leather just under the king's feet, and this was the beginning of the soles of the shoes.