15th Century
| Year | Date | Event |
|---|---|---|
| 1415 | João I conquers the city of Ceuta in northern Africa | |
| 1419 | Madeira Islands discovered by João Gonçalves Zarco and Tristão Vaz Teixeira. | |
| 1427 | Azores Islands discovered by Diogo Silves. | |
| 1433 | Duarte of Portugal becomes king. | |
| 1434 | Gil Eanes crosses the Bojador Cape: exploration of the African coast begins. | |
| 1438 | Afonso V of Portugal becomes king. | |
| 1444 | Discovery and settling of Cape Verde islands. (to 1460) | |
| 1470 | Discovery of São Tomé island. | |
| 1471 | Discovery of Príncipe island. | |
| 1481 | João II of Portugal becomes king. | |
| 1483 | João II executes Fernando, the third Duke of Braganza, and Diogo, the Duke of Viseu, putting an end to high nobility conspiracies. | |
| 1484 | Diogo Cão discovers the Congo river. | |
| 1491 | Bartolomeu Dias becomes the first European to cross the Cape of Good Hope. | |
| 1494 | The Treaty of Tordesilhas signed between Spain and Portugal, dividing the colonisable world in two halves. | |
| 1495 | Manuel I of Portugal becomes king. | |
| 1498 | Vasco da Gama reaches India through navigation around Africa. | |
| 1500 | Diogo Dias discovered an island they named after St Lawrence after the saint on whose feast day they had first sighted the island later known as Madagascar | |
| Manuel I orders expulsion or conversion of the Portuguese Jews. | ||
| Gaspar Corte-Real made his first voyage to Newfoundland, formerly known as Terras Corte-Real. | ||
| 22 April | Pedro Álvares Cabral discovers Brazil. |
Read more about this topic: Timeline Of Portuguese History