History
The Italian word marmellata derives from the Portuguese word marmelo, meaning quince (from the Greek melimelon "honey apple"); as a matter of fact, the ancient Greeks used to preserve quinces slowly cooking them with honey. According to several historical documents, jam was prepared already in the Middle Ages as it is prepared today.
According to a Community rule, today only the product obtained from the processing of citrus fruits can be called marmellata, while if it is made with other fruits, the right term is confettura (preserve).