The Strait of Hormuz /hɔrˈmuːz/ (Arabic: مَضيق هُرمُز‎ Maḍīq Hurmuz, Persian: تَنگِه هُرمُز‎ Tangeh-ye Hormoz) is a narrow, strategically important strait between the Gulf of Oman in the southeast and the Persian Gulf. On the north coast is Iran and on the south coast is the United Arab Emirates and Musandam, an exclave of Oman.

The strait at its narrowest is 21 nautical miles (39 km) wide. It is the only sea passage to the open ocean for large areas of the petroleum-exporting Persian Gulf and is one of the world's most strategically important choke points. Around 20% of the world's oil, which is about 35% of seaborne traded oil, passes through the strait.

The opening to the Persian Gulf was described, but not given a name, in the Periplus of the Erythraean Sea, a 1st-century mariner's guide:

In the 10th to 17th centuries AD, the Kingdom of Ormus, which seems to have given the strait its name, was located here. Scholars, historians and linguists derive^{[dead link]} the name "Ormuz" from the local Persian word هورمغ Hur-mogh meaning date palm.^{[dubious – discuss]} In the local dialects of Hurmoz and Minab this strait is still called Hurmogh and has the aforementioned meaning.^{[citation needed]} The resemblance of this word with the name of the Persian God هرمز Hormoz (a variant of Ahura Mazda) has resulted in the popular belief^{[citation needed][neutrality is disputed]} that these words are related.

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.