Ron Guth: To celebrate the 200th anniversary of Lincoln's birth and the 100th anniversary of the Lincoln Cent, the Mint issued four special Cents in 2009, each showing a different phase of Lincoln's life. The official names for the types, in order of issuance, were:
Birth and Early Childhood in Kentucky
Formative Years in Indiana
Professional Life in Illinois
Presidency in Washington, DC
Circulation strikes were made of copper-plated zinc; those included as part of special collector sets sold by the government were made of the same bronze composition as the pre-1982 Bronze Cents.