The Story of Flame
A relatively new variety of lettuce, Flame was introduced in 1988 by Harris Moran. Despite being described as "distinctly red; slow bolting; a fast mover for markets demanding unique vegetables" it is still a garden rarity.
It may be that the ancient Egyptians were the first to cultivate lettuce from a weed, valuable for its oil producing seeds, to a food crop grown for its leaves. The Greeks and Romans adopted the vegetable and it spread to Europe. By the 18th century many varieties of lettuce had been developed that still exist today.