More than 60 years have passed since John Tyson drove his battered truck to Chicago to deliver a load of 500 Arkansas chickens. Tyson heard that chickens were bringing a better price in northern markets, so he cashed in his savings and borrowed the rest of the money he needed to finance the trip. He sold the birds for a profit of $235, $220 of which he wired home to pay on his debts and buy another load of birds.