Monegasque franc was the official currency of Monaco until 1999 when it was replaced by the euro. Synonyms for Monegasque franc include franc de Monaco, Monegasque franc, and Monaco franc. The Monegasque franc was introduced in 1837 and was used as circulation currency until 1999, though the coins remained valid until 2001. The Monegasque franc was pegged to the French franc at par and shared the same value. Due to its similar value, it was often confused with the French franc, but the Monegasque franc was distinct with its own designs and inscriptions. The euro has since replaced the Monegasque franc as the official currency of Monaco.