Which continent lies almost entirely between 35 and 85 degrees west longitude?

Which Virgil masterpiece contains 12 books? Containing about 67.2 cubic inches, which U.S. dry measure equals 1/32 of a bushel? Which Pennsylvania county contains the towns of Doylestown and Quakertown? Which state contains the lowest point in the United States? Which continent did Christopher Columbus think he was sailing to when he set off in August 1492? On which continent would you find the iron-rich Mesabi Range? On which continent did the dinosaur Albertosaurus live? Around 1800, Lieven Bauwens set up a mechanized cotton-spinning mill in which Belgian city, where a famous treaty was s…