Portugal, officially the Portuguese Republic, is a country in southwestern Europe, on the Iberian Peninsula. Being the westernmost country of mainland Europe, Portugal is bordered by the Atlantic Ocean to the west and south and by Spain to the north and east. The Atlantic archipelagos of the Azores and Madeira are also part of Portugal.The land within the borders of today's Portuguese Republic has been continuously settled since prehistoric times. Some of the earliest civilizations include Lusitanians and Celtic societies. Incorporation into the Roman Republic dominions took place in the 2nd century BC. The region was ruled and colonized by Germanic peoples, such as the Suebi and the Visigoths, from the 5th to the 8th century. From this era, some vestigies of the Alans were also found. The Muslim Moors arrived in the early 8th century and conquered the Christian Germanic kingdoms, eventually occupying most of the Iberian Peninsula. In the early 1100s, during the ChristianReconquista, Portugal appeared as a kingdom independent of its neighbour, the Kingdom of León and Galicia. In a little over a century, in 1249, Portugal would establish almost its entire modern-day borders by conquering territory from the Moors.