• Portugal becomes a republic after King Manuel II steps down amid a revolution.

  • Portugal fights on the Allied side in World War I.

  • Portugal becomes a founding member of the North American Treaty Organization (NATO).

  • Portugal joins the United Nations.

  • India takes Portuguese Goa.

  • Portugal joins the European Economic Community (EEC), which later is incorporated into the European Union (EU).

  • A massive forest fire sweeps across woodland in Portugal, causing the country an estimated loss of one billion euros.

  • Massive demonstrations against the government's economic reforms spread across the country.

  • The Portuguese government announces a package of austerity measure s in an attempt to reduce its budget deficit.

  • Portugal becomes the third EU country to apply for EU financial assistance to help deal with its budget deficit. Portugal is granted a 78 billion euro bailout from the EU and International Monetary Fund. The government plans for further spending cuts in order to be able to repay the massive loan.

  • Credit rating agencies downgrade Portugal's rating junk status. 

Sources:

BBC News open_in_new
Britannica open_in_new