On This Day

Portugal overthrows the monarchy and proclaims a republic

The national flag of the Portuguese Republic, often referred to as the Portuguese flag, consists of a rectangular bicolour with a field divided into green on the hoist, and red on the fly.

The national flag of the Portuguese Republic, often referred to as the Portuguese flag, consists of a rectangular bicolour with a field divided into green on the hoist, and red on the fly. The version without laurels of the country’s national coat of arms stands in the middle of the Portuguese armillary sphere and shield, centered over the colour boundary at equal distance. The flag was announced in 1910, following the 5 October 1910 revolution, inspired by the colours of the Republican Party and the design of radical conspiratorial society the Carbonária.

Its presentation was done on 1 December 1910, after the downfall of the constitutional monarchy on 5 October 1910. However, the official decree approving this flag as the official flag was published on 30 June 1911.

Historical Significance

The national flag of the Portuguese Republic, often referred to as the Portuguese flag, consists of a rectangular bicolour with a field divided into green on the hoist, and red on the fly.

Events Before

  1. American Robert Fowler runs the then-world-record marathon (2:52:45.4) at Yonkers, New York

    American Robert Fowler runs the then-world-record marathon (2:52:45.4) at Yonkers, New York

  2. Stepan Bandera is born

    Stepan Bandera, Greek ukrainian nationalist leader, known for ukrainian nationalist leader, was born on 1909-01-01.

  3. Ernest Shackleton, as part of the British Nimrod Expedition, reaches a record farthest southern latitude of 88°23' south

    Sir Ernest Henry Shackleton (15 February 1874 – 5 January 1922) was an Anglo-Irish Antarctic explorer who led three British expeditions to the Antarctic.

  4. Russian military forces invade northern Persia to support Mohammad Ali Shah's coup d'état against the constitutional gov

    Russian military forces invade northern Persia to support Mohammad Ali Shah's coup d'état against the constitutional government in Persia and relieve the siege of Tabriz

  5. Mien Wenneker, Dutch prince Henry's lover, weds Uncle Cornelis Abbo

    Mien Wenneker, Dutch prince Henry's lover, weds Uncle Cornelis Abbo

Events After

  1. Hank Greenberg is born

    Hank Greenberg, American athlete, known for american baseball player, was born on 1911-01-01.

  2. Belgian mining law introduces a 9.5-hour workday

    Belgian mining law introduces a 9.5-hour workday

  3. British PM Neville Chamberlain (41) weds Anne de Vere Cole

    British PM Neville Chamberlain (41) weds Anne de Vere Cole

  4. American actress Hattie McDaniel (16) weds pianist Howard Hickman (30) in Denver, Colorado

    American actress Hattie McDaniel (16) weds pianist Howard Hickman (30) in Denver, Colorado

  5. Actress Mae West (17) weds fellow vaudevillian Frank Wallace (21) in Milwaukee, Wisconsin

    Actress Mae West (17) weds fellow vaudevillian Frank Wallace (21) in Milwaukee, Wisconsin

More from the 1910s

Frequently Asked Questions

What happened on October 5, 1910?
The national flag of the Portuguese Republic, often referred to as the Portuguese flag, consists of a rectangular bicolour with a field divided into green on the hoist, and red on the fly. The version without laurels of the country’s national coat of arms stands in the middle of the Portuguese armillary sphere and shield, centered over the colour boundary at equal distance. The flag was announced in 1910, following the 5 October 1910 revolution, inspired by the colours of the Republican Party and the design of radical conspiratorial society the Carbonária.
Why is Portugal overthrows the monarchy and proclaims a republic significant?
The national flag of the Portuguese Republic, often referred to as the Portuguese flag, consists of a rectangular bicolour with a field divided into green on the hoist, and red on the fly.

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