Abolition of monarchy
The monarchy of Portugal was also overthrown in 1910 (5 October), two years after the assassination of King Carlos I, ending the reign of Manuel II, who died in exile in England (1932), without issue.
History of Portugal
The invading Medieval Muslim Moors, who conquered and destroyed the Christian Visigothic kingdom in the Iberian Peninsula, were mainly Berbers from North Africa, but they were joined by Arabs from the Middle East.
By 714 Évora, Santarém and Coimbra had been conquered, and two years later Lisbon was in Muslim control. By 718 most of today's Portuguese territory was under Umayyad rule. The Umayyads eventually stopped in Poitiers but Muslim rule in Iberia would last until 1492 with the fall of the Kingdom of Granada.