Grape growing and wine production has been present in this area for thousands of years as attested by several archaeological finds, including Neolithic tombs containing remains of grapes. The wine from Sagunto was mentioned in texts by Juvenal and Marcial in the 2nd century BC. In the 13th century the valencian citizen Arnau de Vilanova wrote one of the first treatises on Spanish wine. Two different types of vineyards are present in the DO depending on the climate. In the hot areas, the vines are planted as low bushes (en vaso) at a distance of 2.5 m from each other, as they are better protected from the heat if they are closer to the ground. In milder climates the vines tend to be planted on trellises.