Portugal, officially the Portuguese Republic is a country located on the Iberian Peninsula, in Southwestern Europe, and whose territory also includes the Macaronesia archipelagos of the Azores, Madeira, and the Savage Islands. It features the westernmost point in continental Europe, and its Iberian portion is bordered to the west and south by the Atlantic Ocean and to the north and east by Spain, the sole country to have a land border with Portugal. Its archipelagos form two autonomous regions with their own regional governments. Lisbon is the capital and largest city by population.
One of the oldest countries in Europe, its territory has been continuously settled, invaded and fought over since prehistoric times. The territory was first inhabited by the Celtic peoples with pre-Romans soon after. Founded first as a county within the Kingdom of León in 868, the country officially gained its independence as the Kingdom of Portugal with the Treaty of Zamora in 1143. The early history of Portugal is shared with the rest of the Iberian Peninsula located in south-western Europe.

Resource:  https://en.wikipedia.org/wiki/Portugal