Not that facts will be much good when arguing with you, but here goes anyways.
The McCormick Reaper was designed by Robert McCormick in Walnut Grove, Virginia. However, Robert became frustrated when he was unable to perfect his new device. His son Cyrus asked for permission to try to complete his father's project. With permission granted,[4] the McCormick Reaper was patented[5] by his son Cyrus McCormick in 1837 as a horse-drawn farm implement to cut small grain crops.[6] This McCormick reaper machine had several special elements:
The traction engine, in the form recognisable today, developed partly from an experiment in 1859 when Thomas Aveling modified a Clayton & Shuttleworth portable engine, which had to be hauled from job to job by horses, into a self-propelled one. The alteration was made by fitting a long driving chain between the crankshaft and the rear axle. [1] Other influences were existing vehicles which were the first to be referred to as traction engines such as the Boydell engines manufactured by various companies and those developed for road haulage by Bray. The first half of the 1860s was a period of great experimentation but by the end of the decade the standard form of the traction engine had evolved and would change little over the next sixty years.
For that matter, read what George Washington had to say on the subject. In his memoirs he wrote that it was getting more and more difficult to find work capable of being done by slaves and for which there is sufficient compensation to make it worthwhile to employ them.
The economic value of slavery was about to take a serious crash, and it was only a matter of time.
But the New York Empire Lords who wanted to keep their money stream rolling in didn't know that at the time, and so they launched a war against the South to get that slave money rolling in again.