After which waterway opened in 1825 were freight rates between Buffalo and New York City cut by more than 90%?

After which short 1967 conflict did Israel control the entire Sinai Peninsula? Which Lakota chief was killed by soldiers in 1877 after he tried to take his sick wife for help? Which TV movie about nuclear war, set largely in Lawrence, Kansas, drew a 46 rating on ABC on November 20, 1983? After which war of 1754-1763 did Britain receive all French land east of the Mississippi except New Orleans? In the Bible, after the death of which wife did Abraham marry Keturah? After Thomas Jefferson's death, his daughter Martha sold which of his homes to a local druggist? After some 17 years in the service of Kublai Khan, Marco Polo returned home in 1295 to which city? Albert Bierstadt's 1869 painting depicts which emigrant route that led to Oregon's Willamette Valley?