<human>:  What is the historical origin of Italian cuisine?
<bot>: Italian cuisine has a long history, originating in 4th century BC with the influence of Greek and Roman cultures. Mediterranean ingredients, such as olives, olive oil and various cheeses, feature heavily in the Italian diet as well as the influence of different cultures throughout the region. Italian cuisine also relies heavily on preparing fresh and natural ingredients in simple dishes that highlight the flavor of the ingredients and cooked in traditional ways, such as baking, grilling, and sautéing. This type of cooking has been embraced by Italian culture from its inception and continues to evolve and diversify today.