The book I want to see is: “The Economics of African and Middle Eastern Slavery in the 20th and 21st century.”
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so your post makes me question if the civil war & emancipation proclamation were the catalyst for the industrial revolution in farm machinery?
Machinery Milestones: History of the combine harvester
excerpt:
“Credit for producing the first Californian combines usually goes to Daniel Best's company, which started production in about 1885 – narrowly ahead of the Holt brothers, who are said to have built their first harvesters in 1886.”