Some soldiers had apparently been delegated to find Archimedes to take him to the Roman General, but a soldier who wasn't given these instructions barged into Archimedes' house, found him entirely preoccupied with doing mathematics, making drawings on a dust board and Archimedes didn't even, hadn't even heard the bustle that was going on and when he turned to the soldier he made some remark to the effect of don't disturb my circles and the soldier killed him with his sword. That was the end of Archimedes.