Despite reaching the Iberian Penisula in the second century BC it took the Romans almost a century to conquer its westernmost parts. The trading post of Olisipo (Lisbon’s Greek name), was occupied in 138 BC.
Roman Lisbon was invaded by Alan tribes from the north, about whom little is known, and then by the Visigoths, who ruled from Toledo. The Visigoths were swept from power by Moorish armies crossing into Iberia at the Straits of Gibraltar. Lisbon fell to the Moors in 714.
The Christian reconquest began in the north, where Afonso Henriques founded the Portuguese kingdom – as distinct from the future Spanish kingdom of León – in 1140. His armies took Lisbon following a three-month siege in 1147.
The high point of Portugal’s era of discovery was Vasco da Gama’s voyage to India. Rounding the Cape of Good Hope, he proved Columbus wrong and gave the Portuguese the competitive edge in the spice trade.
Spain had usurped the Portuguese throne in 1581, after the death of Dom Sebastião and many of the Portuguese nobility in a north African military adventure. The 1640 coup at Lisbon’s royal palace reinstated self-rule and proclaimed the Duke of Bragança king of Portugal.
On 1 November 1755, a massive earthquake struck southern Portugal and laid waste to central Lisbon. Three shocks were followed by devastating fires and tidal waves.
In 1908, Dom Carlos and his heir were assassinated by republican activists in Terreiro do Paço. The king’s surviving son became Dom Manuel II, but abdicated in October 1910 in the face of a republican revolution. The Republic was formalized on 5 October.
António de Oliveira Salazar, who had been appointed finance minister in the hope that he could solve the country’s financial crisis, was asked to form a government in 1932. The following year his new constitution was passed by parliament, in effect making him an authoritarian dictator.
Salazar’s successor Marcelo Caetano and his government were overthrown by a group of army captains on 25 April. Three men were killed by shots from the headquarters of the PIDE, the political police, as crowds cheered the end of its reign of fear.
After a few tumultuous years following the 1974 revolution, a stable democracy was established in Portugal. EU membership brought a boost to the economy through both subsidies and foreign investment. In 2007, the Lisbon Treaty was signed in Belém. Portugal was badly hit by the global economic crisis, however, and austerity continues to this day.