Problem: Ann Arbor, Michigan:

Ann Arbor was founded in 1824 by land speculators John Allen and Elisha Walker Rumsey. On 25 May 1824, the town plat was registered with Wayne County as "Annarbour;" this represents the earliest known use of the town's name. Allen and Rumsey decided to name it for their wives, both named Ann, and for the stands of Bur Oak in the 640 acres (260 ha) of land they purchased for $800 from the federal government at $1.25 per acre. The local Ojibwa named the settlement kaw-goosh-kaw-nick, after the sound of Allen's sawmill.

What was the profession of the founders of Ann arbor?
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A: land speculators

Problem: John, King of England:

During the truce of 12061208, John focused on building up his financial and military resources in preparation for another attempt to recapture Normandy. John used some of this money to pay for new alliances on Philip's eastern frontiers, where the growth in Capetian power was beginning to concern France's neighbours. By 1212 John had successfully concluded alliances with his nephew Otto IV, a contender for the crown of Holy Roman Emperor in Germany, as well as with the counts Renaud of Boulogne and Ferdinand of Flanders. The invasion plans for 1212 were postponed because of fresh English baronial unrest about service in Poitou. Philip seized the initiative in 1213, sending his elder son, Louis, to invade Flanders with the intention of next launching an invasion of England. John was forced to postpone his own invasion plans to counter this threat. He launched his new fleet to attack the French at the harbour of Damme. The attack was a success, destroying Philip's vessels and any chances of an invasion of England that year. John hoped to exploit this advantage by invading himself late in 1213, but baronial discontent again delayed his invasion plans until early 1214, in what would prove to be his final Continental campaign.

By 1212, John had successfully concluded alliances with who?
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A: Otto IV

Problem: Charleston, South Carolina:

As it has on every aspect of Charleston culture, the Gullah community has had a tremendous influence on music in Charleston, especially when it comes to the early development of jazz music. In turn, the music of Charleston has had an influence on that of the rest of the country. The geechee dances that accompanied the music of the dock workers in Charleston followed a rhythm that inspired Eubie Blake's "Charleston Rag" and later James P. Johnson's "The Charleston", as well as the dance craze that defined a nation in the 1920s. "Ballin' the Jack", which was a popular dance in the years before "The Charleston", was written by native Charlestonian Chris Smith.

Who created the song "Charleston Rag"?
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A: Eubie Blake

Problem: Insect:

Late Carboniferous and Early Permian insect orders include both extant groups, their stem groups, and a number of Paleozoic groups, now extinct. During this era, some giant dragonfly-like forms reached wingspans of 55 to 70 cm (22 to 28 in), making them far larger than any living insect. This gigantism may have been due to higher atmospheric oxygen levels that allowed increased respiratory efficiency relative to today. The lack of flying vertebrates could have been another factor. Most extinct orders of insects developed during the Permian period that began around 270 million years ago. Many of the early groups became extinct during the Permian-Triassic extinction event, the largest mass extinction in the history of the Earth, around 252 million years ago.

To what measurement, in cm, did the wingspans of giant dragonfly-like forms reach?
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A:
55 to 70