It's all thanks to a venerable Cummins inline-six turbo-diesel…
September 07, 2018 | The Wall Street Journal
Tractors like this powered the 20th-century agricultural miracle (and the Dust Bowl, but that’s another story). They replaced manpower fleeing to Northern cities and made it possible for one-man farms to get ahead. These machines permanently retired equine suffering in the fields. The dream of Rudolf Diesel—that mechanized agriculture would give farmers and planters power against the moneyed class—was briefly enacted in the farm states of America’s bread basket.