When did the food industry begin to use corn syrup?

1984 was when Coca-Cola made the switch to no sugar cane and all high fructose corn syrup. However this formula varies in different areas of the world. Ex: In the Caribbean they use sugar cane as an ingredient due to the availability and cheapness of it. It is also hypothesized that the switch in America in 1984 helped raise the number of cased of Diabetes.