Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
Sectional tensions had long existed between the states located north of the MasonDixon line and those south of it, primarily centered on the "peculiar institution" of slavery and the ability of states to overrule the decisions of the national government. During the 1840s and 1850s, conflicts between the two sides became progressively more violent. After the election of Abraham Lincoln in 1860 (who southerners thought would work to end slavery) states in the South seceded from the United States, beginning with South Carolina in late 1860. On April 12, 1861, forces of the South (known as the Confederate States of America or simply the Confederacy) opened fire on Fort Sumter, whose garrison was loyal to the Union.
How did slave states react to Lincoln's death?
A: unanswerable

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
In the mid 17th century, after the English Civil War (16421651), Parliament strengthened its position relative to the monarch then gained more power through the Glorious Revolution of 1688 and passage of the Bill of Rights in 1689. The monarch could no longer establish any law or impose any tax without its permission and thus the House of Commons became a part of the government. It is at this point that a modern style of prime minister begins to emerge.
What body was incorporated into the government as a result of the Bill of Rights?
A: House of Commons

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
The first British patent for the use of asphalt/bitumen was 'Cassell's patent asphalte or bitumen' in 1834. Then on 25 November 1837, Richard Tappin Claridge patented the use of Seyssel asphalt (patent #7849), for use in asphalte pavement, having seen it employed in France and Belgium when visiting with Frederick Walter Simms, who worked with him on the introduction of asphalt to Britain. Dr T. Lamb Phipson writes that his father, Samuel Ryland Phipson, a friend of Claridge, was also "instrumental in introducing the asphalte pavement (in 1836)". Indeed, mastic pavements had been previously employed at Vauxhall by a competitor of Claridge, but without success.
In 1845 Richard Tappin Claridge patented the use of what?
A: unanswerable

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
As a result of the 19th century Russo-Persian wars, the Russians took over the Caucasus, and Iran irrevocably lost control over its integral territories in the region (comprising modern-day Dagestan, Georgia, Armenia, and Azerbaijan), which got confirmed per the treaties of Gulistan and Turkmenchay. The area to the north of the river Aras, among which the contemporary Republic of Azerbaijan, eastern Georgia, Dagestan, and Armenia, were Iranian territory until they were occupied by Russia in the course of the 19th century.
What wars resulted in Iran losing control of the Caucasus to the Russians?
A:
the 19th century Russo-Persian wars