The Portugal history is divided into 7 periods. The first was Paleolithic period where Portugal was an independent in terms of monarchy. During this period, Portugal has experienced a lot of conquests by Iberos, Greeks, Romans, Muslims and etc. Romans were the one that leaves the greatest impact on the Portuguese society at the present.
The second period of Portugal history begins when the monarchy is founded in the year 1128 until the House of Burgundy Portugal's very first dynasty disappeared in 1383. During this period, territories were expanded by conquering the Muslims territory and have those lands for Christian settlers. Economic development was brought to another level by specifically designed policies to enhance the agricultural productivity.
The third period was when the House of Avis Portugal was found. It is the second ruling dynasty. During this period, dynastic struggle occurred and wars had been initiated with the Castile which threatened Portugal with a new kingdom.
The fourth period was when the Portuguese managed to seize Ceuta in 1415 which then lead to the Portugal's expansion of marine sector. During the fifth period, the Portugal's monarchy was restored in 1640 and a new dynasty was established, called as the House of Braganca. The period ended with the invasion Napoleon in early 1800s.
The sixth period begins with Liberal Revolution of 1820 was a written constitution which was established in Portugal back then. During this period, civil war occurred where constitutionalists won over absolutists for the independence by Brazil as well as Portugal's exploration on African possessions. The period ended with the fall of rotativismo in early twentieth century.
The last period was in 1910 where the monarchy falls and the First Republic was established. This period too includes António de Oliveira Salazar which is the corporative republic; the downfall of that regime on the 25th April 1974; and lastly, the establishment of Second Republic which is Portugal's democratic regime at the present.
