"Rainwater", as a wine trade mark, has been used for approximately two centuries, especially in the U.S.A. market. In the 18th century, Madeira wine was shipped in casks. Docks did not exist in Madeira then. The casks were taken to the pebbled beach and were left there, awaiting the arrival of the boats, which would then take them to the ships passing Madeira, bound for various destinations. On a certain occasion, a shipment of Madeira wine was to be made to Savannah in the U.S.A. It happened that the casks were left on the beach far a long time.