1. History of Ag. Inventions

2. REAPER Inventor: Cyrus McCormick Inventor: Cyrus McCormick Invented in: 1834 Invented in: 1834 Used for: cut small grain Used for: cut small grain Years later a threshing device was added and then it was called a combine! The grain could then be cut & threshed in the field. Years later a threshing device was added and then it was called a combine! The grain could then be cut & threshed in the field. Modern combine can do what it would take 100 people to do then! Modern combine can do what it would take 100 people to do then!

5. Iron Plow Inventor: Thomas Jefferson Inventor: Thomas Jefferson Replaced wooden plow Replaced wooden plow

7. Steel Moldboard Plow Inventor: John Deere (he was a blacksmith by trade) Inventor: John Deere (he was a blacksmith by trade) Invented: 1837 Invented: 1837 Prairie soil was sticking to the cast iron plows Prairie soil was sticking to the cast iron plows Made it by shaping & polishing a piece of steel cut from a saw blade Made it by shaping & polishing a piece of steel cut from a saw blade This was the beginning of the John Deere Company! This was the beginning of the John Deere Company!

9. Cotton Gin Inventor: Eli Whitney Inventor: Eli Whitney Invented: 1793 Invented: 1793 Removed cotton seed from cotton fiber Removed cotton seed from cotton fiber Paved way for expanded cotton & textile industry Paved way for expanded cotton & textile industry

11. Mechanical Corn Picker Inventor: Edmund W. Quincy Inventor: Edmund W. Quincy Invented: 1850 Invented: 1850 Removed ears of corn from stalks Removed ears of corn from stalks

13. Barbed Wire Inventor: Joseph Glidden Inventor: Joseph Glidden Invented: 1850 Invented: 1850 Used for 4 main purposes Used for 4 main purposes Establish property lines & boundaries Establish property lines & boundaries Discourage trespassing Discourage trespassing Keep your animals contained Keep your animals contained Keep other animals out Keep other animals out

15. Milking Machine Invented: 1878 Invented: 1878 Inventor: Anna Baldwin Inventor: Anna Baldwin Replaced hand milking Replaced hand milking

17. Tractor Invented: 1904 Invented: 1904 Inventor: Benjamin Holt Inventor: Benjamin Holt Source of power for belt-driven machines as well as for pulling Source of power for belt-driven machines as well as for pulling