This course unit discusses the history of the main political and institutional facts that occurred from 1807 to the present in five parts. Firstly, it will look at the situation in Portugal at the beginning of the 19th century, touching upon themes such as the impact of the French invasions, the 1820s revolution, the ascension, triumph and implementation of the liberal régime and the period of regeneration. The second part will look at the Third Portuguese Empire, and especially the Portuguese presence in Africa. In the third part the main themes will relate to the Parliamentary Republic (1910-1920). The fourth part will focus on the period 1828-1974. Finally, in the fifth part, the course will tackle Portuguese history from the post-25th of April period to the present.