Ethanol was almost certainly originally discovered through the accidental fermentation of improperly stored fruit or grain. Corn (maize) was unknown to Europeans until around the 15th century, but it was obviously a type of grain, and everybody knew by then you could make ethanol out of grain, so "corn ethanol" wasn't really "discovered" so much as "something everyone assumed to be true turned out to actually be true."
Ethanol was almost certainly originally discovered through the accidental fermentation of improperly stored fruit or grain. Corn (maize) was unknown to Europeans until around the 15th century, but it was obviously a type of grain, and everybody knew by then you could make ethanol out of grain, so "corn ethanol" wasn't really "discovered" so much as "something everyone assumed to be true turned out to actually be true."
The key word in the answer is ETHANOL. Ethanol comes from corn. Therefore agriculture...grow corn, make fuel from the corn, power cars from Ethanol
One bushel of corn yields about 2.8 gallons of ethanol.
Rice corn
To name only a few: Cornmeal Corn syrup Cornstarch Ethanol Corn oil
Assuming the dry-milling method of ethanol production (the most common), one 56-pound bushel of corn makes 2.7 gallons of fuel ethanol and 17.4 pounds of dried distillers' grain. This means that 69% of the corn went into the ethanol.
Ethanol
ethanol
Ethanol, both a liquor and a fuel, has been around in the form of Moonshine Whiskey since 15th Century Scotland. In 1908, Ford Motor Company's first car, The Model T, used ethanol corn alcohol gasoline for fuel energy (gasoline).
As of 2011, approximately 45% of US corn production is being used for ethanol production.
Currently a bushel of corn produces about 2.8 gallons of ethanol. With better varieties that figure will increase to 3 gallons. In the near future, the corn distillate will be processed again, yielding some more ethanol.
Approximately 38% of corn produced in the US is used for ethanol production.