The phrase "jack tars" is a colloquial term for sailors that originated in the early 18th century. It was commonly used by British sailors and has since become synonymous with sailors and naval officers in general. Some synonyms for "jack tars" include seamen, mariners, sailors, navy men, and ocean-goers. The term "tars" is thought to refer to the tar used aboard ships to waterproof rigging and sails. It is interesting to note that many of these terms have nautical origins and reflect the important role that sailors have played in the development of seafaring nations throughout history. Regardless of the term used, sailors and their contributions to maritime culture are an integral part of our world's history.