10 Crucial Days That Changed the Course of History! You're about to be an eyewitness to the ten crucial days in Abraham Lincoln's life, including: A tragic loss that sets a boy on a course for greatness A career sacrificed to protest an unjust war A state resorting to treason to preserve slavery A president who learns the most difficult decisions are made alone And a promise made to every citizen that American's salves will be free.These days and five others shook Lincoln's world — and yours. Offering a unique look at history, this fascinating biography focuses on the most important days in President Abraham Lincoln's illustrious life. • Black-and-white illustrations and historical photographs • Notes and a selected bibliography Abraham Lincoln lived 20,516 days, and 10 of those days changed the world. Readers can learn about the most famous events and documents of Lincoln's lifetime, including his debate about slavery with Senator Stephen Douglas, the Emancipation Proclamation, and the Gettysburg Address.