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 Exhibition drill Exhibition drill is a variant of drill that involves complex marching sequences which usually deviate from drill used in the course of ordinary parades. Teams performing exhibition drill are often affiliated with military units, but the scope of exhibition drill is not limited to military drill teams. Exhibition drill is often performed by Armed Forces Drill Teams, the drill teams at service academies and ROTC and JROTC units, and civilian drill teams that perform at parades, drill meets, and half-time shows and other public venues. The first documented performance of exhibition drill was performed by Hadji Cheriff and