The assassination of United States President Abraham Lincoln took place on Good Friday, April 14, 1865, as the American Civil War was drawing to a close. The assassination occurred five days after the commanding General of the Army of Northern Virginia, Robert E. Lee, surrendered to General Ulysses S. Grant and the Army of the Potomac. Lincoln was the first American president to be assassinated, though an unsuccessful attempt had been made on Andrew Jackson thirty years before in 1835. The assassination was planned and carried out by the well-known stage actor John Wilkes Booth, as part of a larger conspiracy in a bid to revive the Confederate cause. Booth's co-conspirators were Lewis Powell and David Herold, who were assigned to kill Secretary of State William H. Seward, and George Atzerodt who was to kill Vice President Andrew Johnson. By simultaneously eliminating the top three people in the administration, Booth and his co-conspirators hoped to sever the continuity of the United States government. Lincoln was shot while watching the play Our American Cousin with his wife Mary Todd Lincoln at Ford's Theatre in Washington, D.C. on the night of April 14, 1865. He died early the next morning. The rest of the conspirator's plot failed; Powell only managed to wound Seward, while Atzerodt, Johnson's would-be assassin, lost his nerve and fled Washington.

Abraham Lincoln ⁱ/ˈeɪbrəhæm ˈlɪŋkən/ (February 12, 1809 – April 15, 1865) was the 16th President of the United States, serving from March 1861 until his assassination in April 1865. He successfully led his country through its greatest constitutional, military and moral crisis – the American Civil War – preserving the Union while ending slavery, and promoting economic and financial modernization. Reared in a poor family on the western frontier, Lincoln was mostly self-educated. He became a country lawyer, a Whig Party leader, Illinois state legislator in the 1830s, and a one-term member of the United States House of Representatives in the 1840s. After a series of debates in 1858 that gave national visibility to his opposition to the expansion of slavery, Lincoln lost a Senate race to his arch-rival Stephen A. Douglas. Lincoln, a moderate from a swing state, secured the Republican Party nomination. With almost no support in the South he swept the North and was elected president in 1860. His election was the signal for seven southern slave states to declare their secession from the Union and form the Confederate States of America. The departure of the Southerners gave Lincoln's party firm control of Congress, but no formula for compromise or reconciliation was found. And the war came.

Abraham (Hebrew:  אַבְרָהָם (help·info), Modern: Avraham, Tiberian: ʼAḇrāhām, Ashkenazi Avrohom or Avruhom, Arabic: إبراهيم‎ Ibrāhīm, Ge'ez: አብርሃም ʼAbrəham, Greek: Aβραάμ, Russian: Авраам), whose birth name was Abram, is the eponym of the Abrahamic religions, among which are Judaism, Christianity and Islam. According to both the Hebrew Bible and the Qur'an, through his sons Ishmael and Isaac, Abraham is the forefather of many tribes, namely the Ishmaelites, Israelites, Midianites and Edomites. Abraham was a descendant of Noah's son, Shem. Christians believe that Jesus was a descendant of Abraham through Isaac, and Muslims believe that Muhammad was a descendant of Abraham through Ishmael. Abraham is notable for his advocation and promotion of monotheism.

The Book of Genesis narrative that records the life of Abraham presents his role as one that could only be fulfilled through a monotheistic covenant established between him and God. The Qur'an has stories about Abraham and his offspring that are similar to the Bible's. In Islam, Abraham is recognised as a prophet, patriarch and messenger, archetype of the perfect Muslim, and reformer of the Kaaba.