 Once called "Ribeira dos Moinhos", it arrived at its name from the number of watermills and windmills that line the watercourse, along a fertile river valley that flows to the Tagus River.It is unclear when the parish was established, although it is generally assumed that the first inhabitants were fishermen.The region is supported by activities that include agriculture, commerce (charcutaria, grocery stores, carpentry shops, civil construction firms and automobile dealerships), services and industry (woodmilling and automobile).