From the first legit self-propelled farm tractor patented in the United States – it was called a “Traction-Locomotive Carrying its own Railway”, to Owen Lovejoy’s Department of Agriculture, chemical fertilizers and the modern GPS this podcast emphasizes major innovations in agriculture from 1850 through the end of the twentieth century. Along the way, we will discuss some of the civil war era congress’s accomplishments outside of the war and how the Doppler effect got its name.