The dime is a coin worth ten cents, or one tenth of a United States dollar. The dime is the smallest in diameter and the thinnest of all U.S. coins currently minted for circulation. The 32nd President, Franklin D. Roosevelt, is featured on the obverse of the current design, while a torch, oak branch, and olive branch covering the motto E pluribus unum are featured on the reverse. The dime's value is labeled as "one dime," since the term 'dime' also applies to a unit of currency worth 10 cents or 1/10 of a dollar.
Mintage of the dime was commissioned by the Coinage Act of 1792, and production began in 1796. A feminine head representing Liberty was used on the front of the coin, and an eagle on the back. These motifs were used for three different designs through 1837. From 1837 to 1891, "Seated Liberty" dimes were issued, which featured Liberty seated next to a shield. In 1892, a feminine head of Liberty returned to the dime, and it was known as a "Barber dime". The backs of both of the latter two designs featured the words "ONE DIME" enclosed in various wreaths. In 1916, the head of a winged-capped Liberty was put on the dime and is commonly known by the misnomer of "Mercury dime"; the back featured a fasces. The most recent design change was in 1946.
The term dime comes from old French "di(s)me", meaning "tithe" or "tenth part," from the Latin decima [pars]. This term appeared on early pattern coins, but was not used on any dimes until 1837.