Abraham Lincoln was an unlikely family man, but marriage and fatherhood helped him lead the nation through crisis.

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Abraham Lincoln was plagued by bouts of melancholy and depression throughout his life.

Abraham Lincoln's 1858 "House Divided" speech catapults him into the national consciousness with its bold moral assessment of the future of American slavery.

Abraham Lincoln devoted intense effort to self-education through reading. His grammar book survives as a testament to this self-made man's pursuit of knowledge.

Life masks of Abraham Lincoln taken in 1860 and 1865 reveal the physical changes that the president experienced during four years of war.

President Abraham Lincoln presents his vision for America during his Second Inaugural Address, but his life is cut short by an assassin before he can bring it to fruition.

Chief Justice Roger B. Taney administered the oath of office to Abraham Lincoln using a Bible purchased for the occasion. The ceremony was witnessed by Clark of the Supreme Court, William Thomas Carrol, who recorded the occasion in the Bible, which has special significance for President Obama.