Alexander Hamilton, the first U.S. secretary of the treasury, is featured on the current $10 bill. Treasury Secretary Jack Lew recently announced that a woman will be featured on the bill when it's redesigned in 2020. Click through the gallery to see how the note has evolved: U.S. Treasury Department
The back of the current bill features an image of the U.S. Treasury building. The angle from which the building is shown has changed over the years. U.S. Treasury Department
Hamilton is one of two non-Presidents to be featured on current U.S. currency. The other is Benjamin Franklin, whose face is on the current $100 bill. Hamilton's portrait is the only one on current notes where the subject is facing left (unless you count Woodrow Wilson's $100,000 note appearance). U.S. Treasury Department
In the early 1990s, a security thread and microprinting were added to all bills (except the $1 and $2) to deter counterfeiting. U.S. Treasury Department
1929 marked the year in which all currency was reduced in size. The cost-cutting measure also meant that designs were standardized across denominations. U.S. Treasury Department
The first $10 bills were issued in 1914. They featured a portrait of President Andrew Jackson on the front. U.S. Treasury Department