In 1874, Invented barbed wire

In 1879, Invented Perishable Food Preservation (Refrigerator)

In 1834, Invented Seed Planter

In 1793, Invented the cotton gin

Invented the Tractor

In 1987, Invented the Gene Gun

In 1837, Improved the iron plow by making the steel plow

What percent of the US population works on the farm in 2022?

In what year did the tractor pass the mule as the main source of agriculture power?