1910

• October 4 - Beginning of the Republic
  Republic
  A republic is a form of government in which the people, or some significant portion of them, have supreme control over the government and where offices of state are elected or chosen by elected people. In modern times, a common simplified definition of a republic is a government where the head of...
  
  an Revolution. The Republic is proclaimed in Loures
  Loures
  Loures Municipality is a municipality to the north of Lisbon. Created on 26 July 1886 by a royal decree, the municipality currently occupies an area of 169 km² and has about 200,000 inhabitants . It borders the municipalities of Odivelas, Sintra, Mafra, Arruda dos Vinhos, Vila Franca de Xira...
  
  , just north of Lisbon
  Lisbon
  Lisbon is the capital city and largest city of Portugal with a population of 545,245 within its administrative limits on a land area of . The urban area of Lisbon extends beyond the administrative city limits with a population of 3 million on an area of , making it the 9th most populous urban...
  
  .
• October 5
  • The Republican Revolution, supported by popular uprising and virtually no resistance, is victorious and puts an end to the Monarchy
    Monarchy
    A monarchy is a form of government in which the office of head of state is usually held until death or abdication and is often hereditary and includes a royal house. In some cases, the monarch is elected...
    
    .
  • The last King of Portugal, Manuel II of Portugal
    Manuel II of Portugal
    Manuel II , named Manuel Maria Filipe Carlos Amélio Luís Miguel Rafael Gabriel Gonzaga Francisco de Assis Eugénio de Bragança Orleães Sabóia e Saxe-Coburgo-Gotha — , was the last King of Portugal from 1908 to 1910, ascending the throne after the assassination of his father and elder brother Manuel...
    
    , and the Portuguese Royal Family
    Portuguese monarchs family tree
    Here on this page you will find the family tree of the different monarchies of Portugal - one graph for each dynasty.See also List of Portuguese monarchs-First Dynasty: Afonsina, de Borgonha or House of Burgundy:...
    
     embark in Ericeira
    Ericeira
    Ericeira is a fishing and seaside resort town on the west coast of Portugal, in the municipality of Mafra, about 35 km north-west of the centre of Lisbon...
    
     for exile in England
    England
    England is a country that is part of the United Kingdom. It shares land borders with Scotland to the north and Wales to the west; the Irish Sea is to the north west, the Celtic Sea to the south west, with the North Sea to the east and the English Channel to the south separating it from continental...
    
    .
  • The Republic
    Republic
    A republic is a form of government in which the people, or some significant portion of them, have supreme control over the government and where offices of state are elected or chosen by elected people. In modern times, a common simplified definition of a republic is a government where the head of...
    
     is officially proclaimed in Lisbon
    Lisbon
    Lisbon is the capital city and largest city of Portugal with a population of 545,245 within its administrative limits on a land area of . The urban area of Lisbon extends beyond the administrative city limits with a population of 3 million on an area of , making it the 9th most populous urban...
    
    .

1921

• The Portuguese Communist Party
  Portuguese Communist Party
  The Portuguese Communist Party is a major left-wing political party in Portugal. It is a Marxist-Leninist party, and its organization is based upon democratic centralism. The party also considers itself to be patriotic and internationalist....
  
   was founded from the ranks of the Portuguese Maximalist Federation
  Portuguese Maximalist Federation
  The Portuguese Maximalist Federation was a revolutionary movement founded in 1918 in Portugal. It was inspired by the most radical factions involved in the Russian revolution of 1917....
  
   as the Portuguese Section of the Communist International.

1926

• The 28 May 1926 military coup d'état
  28th May 1926 coup d'état
  The 28 May 1926 coup d'état, sometimes called 28 May Revolution or, during the period of Estado Novo , National Revolution , was a military action that put an end to the unstable Portuguese First Republic and initiated the Ditadura Nacional , later, renamed the Estado Novo, an authoritarian...
  
   ends the 1st Portuguese Republic.

See also

• Timeline of Portuguese history
  Timeline of Portuguese history
  This is a historical timeline of Portugal.*Timeline of Iberian prehistory*Pre-Roman Iberia *Roman Lusitania and Gallaecia *Germanic Kingdoms...
  
  
  • Fourth Dynasty: Bragança (17th to 20th Century)
    Timeline of Portuguese history (Fourth Dynasty)
    -17th Century:*1640, December 1: a small group of conspirators storms the Palace in Lisbon and deposes the Spanish Governor, the Duchess of Mantua. The Duke of Bragança, head of the senior family of the Portuguese nobility , accepts the throne as Dom João IV of Portugal, despite deep personal...
    
    
  • Second Republic: Authoritarian Estado Novo (20th Century)
    Timeline of Portuguese history (Second Republic)
    This is a historical timeline of Portugal.-1926:*May 27, The General Manuel de Oliveira Gomes da Costa arrives at Braga with the purpose of initiating a Coup d'état....