Mechanization in 1801, displacing the centuries-old hand method of making individual sheets of paper. One of the first mechanical devices used in agriculture was the seed drill invented by Jethro Tull around 1700. The seed drill allowed more uniform spacing of seed and planting depth than hand methods, increasing yields and saving valuable seed. Mechanized agriculture greatly increased in the late eighteenth and early nineteenth centuries with horse drawn reapers and horse powered threshing machines. By the late nineteenth century steam power was applied to threshing and steam tractors appeared. Internal combustion began being used for tractors in the early twentieth
Exhibition drill a person crosses a boundary line. Some high-school level competitions prevent cadets who are participating in armed drill events from performing more dangerous 'over the head' spins, or raising cadets off the floor, in the interest of safety. Some high school drill teams compete at the National High School Drill Team Championships in Daytona Beach, Florida, and generally use demilitarized Springfield M1903s, M1 Garands, M-14 rifles and Daisy Drill Rifles. Certain teams at the NHSDTC who receive high placings end up being well known on a national level. There are also national levels for JROTC divisions nationwide. There is the