Phylloxera aphid inestations killed many vines, but the louse attacks mostly the roots; grafting vines onto American native rootstocks saved the industry. The old varieties are still grown, on American roots.
Oops, that was supposed to read “aphid”, not “louse”.
It would be fascinating to time travel to a Roman banquet and sample their food and wine. Some of the feasts sound really decadent.