In 1808 the inventor, Richard Trevithick, developed a new locomotive he called Catch Me Who Can. In the summer of 1808 Trevithick erected a circular railway or steam circus in Euston Square in London. During the months of July and August people paid a shilling a time to ride in a carriage pulled by Trevithick's locomotive. Trevithick had plenty of volunteers to ride on Catch Me Who Can that could travel at speeds of 12 mph (19 kph). However, the weight of the locomotive caused the rails to break and he was forced to bring the experiment to an end.