The land within the borders of today's Portuguese Republic has been continuously settled since prehistoric times. In 29 B.C. the territory was occupied by the Gallaeci and the Lusitanians when it was integrated in the Roman Empire as the provinces of Lusitania and part of Gallaecia. Roman settlers strongly influenced Portuguese culture, particularly the Portuguese language, mostly derived from Latin. In the 5th century, after the fall of the Roman empire, it was occupied by several Germanic peoples, mainly the Suevi and the Visigoths. In the early 8th century Muslim Moors conquered those Christian kingdoms, occupying most of the Iberian Peninsula.