The swallow tattoo was a symbol use historically by sailors to show off their sailing experience. Of British origin in the early days of sailing, it was the image of a Barn Swallow, usually tattooed on the chest. According to one legend, a sailor with one swallow had travelled over 5,000 nautical miles (9,000 km); a sailor with two swallows had travelled 10,000 nautical miles (19,000 km). Travelling these great distances was extremely difficult and dangerous in the early days of sailing, so one or more swallow tattoos denoted a very experienced and valuable sailor. It is also legend that if the sailor drowns, the swallows will carry their soul to heaven, representing freedom and hope.