Episode 1 of 2

Failure of Ratification

When
1890
Where
Portuguese Parliament
Part of
1890 Treaty of London defining Portuguese colonial borders

The Treaty of London was never ratified by the Portuguese Parliament, causing its provisions to remain unenforced.

Although signed on 20 August 1890, the treaty was never ratified by the Portuguese Parliament. This failure meant that areas allocated to Portugal in the treaty were later reassigned to the British South Africa Company in the 1891 treaty, with Portugal receiving compensation in the Zambezi valley.

Sources

  1. Anglo-Portuguese Treaty of 1891 Wikipedia, revision of 2026-03-25
  2. 1890 British Ultimatum Wikipedia, revision of 2026-09-18

Machine-drafted from the cited Wikipedia passages and checked by a reviewing model, not by a human editor. Every passage cites the revision it was written from; dates and places follow those passages.