The prohibition ended 76 years ago ...

According to this article the U.S. prohibition law was (finally) repealed after 13 years of hard times for the nascent US Wine industry.

Both articles mention interesting ways on how the wine industry did actually (partially) survive:

• legal production for personal use only (50 gallon per family per year, that is about 190l, which is about 250 bottles ... not sure we consume that much in a year)
• selling to church for use during ceremonies
• selling of bricks of concentrated grapes with a warning that should prevent people from accidentally making wine ... (cfr. article in Time Magazine)

I just love the ingenuity with which people always succeed in bypassing the law to make money ...