Kingsport’s Chamber Of Commerce Is Reclaiming The Origin Of The Beverage, Long Island Ice Tea. Visit Kingsport Said The Drink Was Invented By A Resident Named Charles Bishop In The 1920’s On Kingsport’s Long Island During Prohibition. The City Is Asking Restaurants And Business Owners To Promote The Kingsport Version Of The Drink. The Agency Is Also Planning A National Campaign That Invites Tourists To Come And Take A Sip In The City It Originated In.