Due to the Presidential $1 Coin Act of 2005 (Public Law 109-145), the United States Mint began producing the Presidential Dollar Coin Series in 2007. Each year since 2007, four presidents have been honoured by a coin that bears their image. The series goes in order according of the president's term in office. The obverse of each coin features the president, his years in office, the year of minting or issuance, E PLURIBUS UNUM and the mint mark. On the reverse is a beautiful rendition of the Statue of Liberty and the edge of each coin holds inscriptions.