History of the horse in Britain drawn by two horses, the "Dutch plough", was used in eastern England; this was followed in 1730 by the lightweight Rotherham plough, an unwheeled, or "swing" plough. It was advertised as reducing ploughing times by a third, or using a third less horsepower for the same ploughing time. The improved seed drill and horse-hoe were invented by Jethro Tull in 1731; but it took more than 100 years for these designs to come into common use. The earliest horse-powered threshing machines, which were installed permanently in barns, were developed towards the end of the 18th century. The use of fast
Drill Instructor Ribbon Drill Instructor Ribbon A Drill Instructor Ribbon is a military award of the United States Armed Forces which is issued by the U.S. Navy, U.S. Air Force and U.S. Marine Corps. The Drill Instructor Ribbon recognizes those service members who are trained and qualified as military instructors to new recruits during initial basic training. The U.S. Marine Corps Drill Instructor Ribbon was created in July 1997 and recognizes those members of the United States Marine Corps who have successfully trained and qualified as Marine Corps Drill Instructors. To qualify, a Marine must hold the Military Occupational Specialty (MOS) of 0911