After becoming king in 1625, Charles I quickly got into arguments with members of Parliament. From 1629 to 1640, he shut Parliament down and ruled without it. This was legal, as long as he did not raise taxes. He used some legal tricks to raise money without bringing back Parliament. For example, he used "ship money", a tax that had been paid by coastal towns in times of war. Charles I started charging it to all towns when there was no war. This was unpopular, but judges decided that it was legal. The period from 1629 to 1640 was known as the "Eleven Years' Tyranny" by the king's enemies.