1700's-mid 1800's
invention of the cotton gin
1793
Barbed wire invented
1867
open geared gas tractors introduced
1910-1915
1834
McCormick reaper patented
1870's
Refrigerator cars introduced
frozen foods popularized
1941-1945
1837
John Deere began manufacturing steel plows
1881
Hybridized corn produced
2nd american agriculture revolution
1945-1970
Sir John Lawes founded the commercial fertilizer industry
1843
first gasoline tractor - DAILY DOUBLE
1892
1980's-1990's
Biotechnology becomes viable for improving crop and livestock products
1st american agriculture revolution
1862-1875
1900-1910
George Washington Carver found new uses for peanuts, sweet potatoes, and soybeans
1994