The ruling Grimaldi family allies with Spain while Monaco is under Spanish protection until 1641.
Monaco is returned to the Grimaldis after being unified with France since the French Revolution in 1793.
Independence is restored under the Franco-Monegasque treaty.
Monaco's first constitution provides for an elected National Council to share legislative power with the prince.
Monaco becomes the smallest member state to join the United Nations.
The Organization for Economic Co-operation and Development (OECD) places Monaco on the blacklist of uncooperative tax havens, where it remains until 2009.