The sword was Excalibur It had a lot of power The Lady of the lake gave it to king uther but asked him to give her his first born child. Uther became powerful when his first child was born merlin the magician came to take the baby . other tried to stop h but thieves attacked him.Before he died he put Excailbur into as tone and asked merlin to make his son a king Merlin promised that only someone with a pure heart could pull it out and become the next king of England when Arthur pulled the sword out people were surprised Merlin explained that Arthur was Luther's son and the people were happy Arthur was a good king He built a big castle Camelot and ruled over England with his knights He called them the knights of the Round Table Together they made England a strong country