Complete the title of Edgar Allan Poe's tale: "___ and the Pendulum".

1840s guidebooks led emigrants from Independence, Missouri, to Oregon's Willamette Valley along which trail? In which 1841 novel, the last of Cooper's Leatherstocking Tales, is Natty Bumppo a young man? Which pair's nicknames included "Tippecanoe" and "His Accidency" in 1841? Complete the title of Robert Browning's 1842 dramatic monologue: "My Last ___". Which U.S. president lived from 1843 to 1901? Which 1843 story begins "Marley was dead: to begin with"? John Lloyd Stephens' 1843 "Incidents of Travel in Yucatan" described the ruins of which civilization? In 1844, dentist Horace Wells had a tooth pulled after inhaling which gas, pioneering its use as an anesthetic?