The increase in life expectancy during the 20th century is largely due to improvements in child survival; this increase is associated with reductions in infectious disease mortality, due largely to immunization.1 However, infectious diseases remain a major cause of illness, disability, and death.
The First Mowers. The lawn mower was invented in 1830 by Edwin Beard Budding, an engineer from Stroud, Gloucestershire, England. He obtained the idea after seeing a machine in a local cloth mill which used a cutting cylinder (or bladed reel) mounted on a bench to trim cloth to make a smooth finish after weaving.
New inventions helped farmers to meet some of the challenges of farming in the late 1800s. The steel plow invented by John Deere in 1838 and improved upon by James Oliver in 1 â¦ 868 sliced through the tough sod. Windmills adapted to the plains pumped water from deep wells to the surface.