Two supplemental volumes of "The Collected Works of Abraham Lincoln" are being made available online by the Abraham Lincoln Association.

Last summer, an intern named Dan Martin at the Historic Films Archive in Greenport, New York, made an unexpected discovery. [ ...

Presidents Day offers a valuable opportunity to revisit Abraham ... and work to establish new state constitutions. This conciliatory approach was reiterated in Lincoln’s famous second inaugural ...

His favorite work was Mortality, written by William Knox ... He is the only president to hold a patent Abraham Lincoln is the only U.S. president to hold a patent. It was issued to Lincoln ...