As a child Arthur did not know he was going to be a king How did he discover he was the rightful ruller od England?

Answer 1

Merlin had created the sword in the stone which read that, "whosoever pulleth this sword from this stone is rightwise born king of all England." A great tounament was being held to determine who would have the right to try to pull it out. Young Arthur was acting a squire to his foster brother, Sir Kay. When they were getting ready for Kay to fight, it was discovered that Arthur had left Kay's sword back at the inn. When Arthur ran back to retrieve it, he saw the sword in the stone and grabbed that instead, without realizing what it meant. Kay recognized it immediately and showed it to his father. At first he tried to claim he had pulled it but on questioning admitted that Arthur had done it. They went back to the stone, accompanied by all of the knights, and Arthur demonstrated that he could put the sword in and pull it out. Several of the knights tried to pull it and failed. After Arthur had demonstrated several times that he could do it, and no one else was able to, he was acclaimed king.