Spain (; ), officially the Kingdom of Spain (), is a sovereign state located on the Iberian Peninsula in southwestern Europe. Its mainland is bordered to the south and east by the Mediterranean Sea except for a small land boundary with Gibraltar; to the north and northeast by France, Andorra, and the Bay of Biscay; and to the west and northwest by Portugal and the Atlantic Ocean. Along with France and Morocco, it is one of only three countries to have both Atlantic and Mediterranean coastlines. Spain’s border with Portugal is the longest uninterrupted border within the European Union. Spanish territory also includes two archipelagos; the Balearic Islands, in the Mediterranean Sea, and the Canary Islands, in the Atlantic Ocean off the African coast; two major exclaves, Ceuta and Melilla, in continental North Africa; and the islands and peñones (rocks) of Alborán, Chafarinas, Alhucemas and Vélez de la Gomera. With an area of , Spain is the second largest country in Western Europe and the European Union, and the fifth largest country in Europe. By population, Spain is the sixth largest in Europe and the fifth in the European Union. Modern humans first arrived in the Iberian Peninsula around 35,000 years ago. It came under Roman rule around 200 BCE, after which the region was named Hispania. In the Middle Ages, the area was conquered by Germanic tribes and later by the Moors. Spain emerged as a unified country in the 15th century, following the marriage of the Catholic Monarchs and the completion of the centuries-long reconquest, or Reconquista, of the peninsula from the Moors in 1492. In the early modern period, Spain became one of history’s first global colonial empires, leaving a vast cultural and linguistic legacy that includes over 500 million Spanish speakers, making Spanish the world’s second most spoken first language. Spain is a democracy organised in the form of a parliamentary government under a constitutional monarchy. It is a developed country with the world’s fourteenth largest economy by nominal GDP and sixteenth largest by purchasing power parity. It is a member of the United Nations (UN), the European Union (EU), the Council of Europe (CoE), the Organization of Ibero-American States (OEI), the North Atlantic Treaty Organization (NATO), the Organisation for Economic Co-operation and Development (OECD), the World Trade Organization (WTO) and many other international organisations.