No founder, sponsoring organisation or establishing document for National Creative Ice Cream Flavors Day was located in the indexes checked, which included the Federal Register, HathiTrust's digitised run of Chase's Calendar of Events, and English Wikipedia. The earliest trace found is a holiday listing page captured by the Internet Archive in April 2002, and a listing dates the listing rather than the day, so it sets a floor on how long the day has circulated and not a year of origin.
A winter course for a summer trade
Penn State began teaching dairy manufacturing in 1892, in the season when, as the department still puts it, farm work is least pressing. By 1925 ice cream had a course of its own. It runs every January, which the department describes as normally the slowest time for the ice cream industry.
Penn State calls it the oldest and largest program of its kind in ice cream science. More than 4,400 people have taken it, drawn from every state and from every continent except Antarctica.


