| 868 |
Establishment of the 1st County of Portugal, by count Vímara Peres, after the reconquest from the Moors of the region North of the Douro River. |
| 1065 |
Independence of the Kingdom of Galicia and Portugal under the rule of Garcia. |
| 1072 |
Lost of independence. |
| 1095 |
Establishment of the 2nd County of Portugal, by Count Henry. |
| 1095–1279 |
A Portuguese kingdom was established independent from Leon and extended southwards until it reached its present continental limits. |
| 1128 |
"Independence" of Portugal. |
| 1143 |
Recognition of the "independence" of Portugal. |
| 1279–1415 |
The monarchy was gradually consolidated in spite of resistance from the Church, the nobles and the rival kingdom of Castile. |
| 1415–1499 |
A period of crusades and discoveries, culminating in the discovery of an ocean-route to India (1497—1499). |
| 1499–1580 |
Portugal acquired an empire stretching from Brazil eastward to the Moluccas, reached the zenith of its prosperity and entered upon a period of swift decline. |
| 1581–1640 |
Spanish kings ruled over Portugal. |
| 1640–1755 |
The chief event of these years was the restoration of the Portuguese monarchy. |
| 1755–1826 |
The reforms of the Marquis of Pombal and the Peninsular War prepared the country for a change from absolutism to constitutional monarchy. |
| 1755–1826 |
The reforms of the Marquis of Pombal and the Peninsular War prepared the country for a change from absolutism to constitutional monarchy. |
| 1826–1910 |
Portugal was a constitutional Monarchy, and Brazil becomes independent. |
| 1910–1926 |
The Republic was established. |
| 1916–1918 |
Portugal contributes to the Great War on the Allies' side. |
| 1926–1974 |
Portugal was under a dictatorial regime. |
| 1974 |
A democratic regime was established. |
| 1986 |
Portugal joins the European Communities (EEC later EU). |