Ag History By Mikayla Bousman Sep 6, 1793 Cotton Gin - Eli Whitney Sep 6, 1800 Iron Plow - Thomas Jefferson Sep 6, 1834 Grain Reaper - Cyrus McCormick Sep 6, 1834 Seed Planter - Henry Blair Sep 6, 1836 Cotton Planter - Henry Blair Sep 6, 1837 Steel Moldboard Plow - John Deere Sep 6, 1850 Corn Picker - Edmund Quincy Sep 6, 1874 Barbed Wire - Joesph Glidden Sep 6, 1878 Milking Machine - Anna Baldwin Sep 6, 1879 Perishable Food Preservation - Thomas Elkins Sep 6, 1890 Soil Improvement and Crop Rotation - Gerorge Washington Carver Sep 6, 1904 Tractor - Ben Holt Sep 12, 1917 Smith - Hughes Sep 12, 1928 Became a National Organization Sep 12, 1930 Creed Adopted Sep 12, 1950 Federal Charter Recieved Sep 12, 1965 FFA and NFA merged Sep 12, 1969 Girls allowed Period: Sep 6, 1973 to Sep 6, 2013 Ag History Sep 6, 1987 Gene Gun - John Sanford Sep 12, 1988 FFA Name Change Sep 6, 1993 GPS Technology Tractor Based Sep 6, 1998 Robotic Milking Machines