• The King of France, the Pope, and the Duke of Savoy all recognize Monaco's sovereignty. 

  • Monaco allies itself with Spain and becomes a Spanish protectorate. 

  • The French revolution disposes the Grimaldi family in control of Monaco and unifies Monaco with France

  • Monaco is returned to the Grimaldi family and becomes a Sardinian protectorate until 1860. 

  • Monaco's independence is restored under the Franco-Monegasque treaty. 

  • Monaco joins the United Nations, becoming its smallest member state. 

  • Monaco doubles it port capacity by building a massive floating pier. 

  • Monaco and the EU sign a tax transparency agreement.

Sources:

BBC News open_in_new
Britannica open_in_new