Iberia enters written records as a land populated largely by the Iberians, Basques and Celts. After an arduous conquest, the peninsula came under the rule of Rome. During the early Middle Ages it came under Germanic rule but later, much of it was conquered by Moorish invaders from North Africa. In a process that took centuries, the small Christian kingdoms in the north gradually regained control of the peninsula. The last Moorish kingdom fell in the same year Columbus reached the Americas. A global empire began which saw Spain become the strongest kingdom in Europe, the leading world power for a century and a half, and the largest overseas empire for three centuries.
