A long siege at which military base in 1954 marked the end of French power in Indochina?

Which word means both a long home run and political pull? Which word names a metal pole used to divert lightning, as invented by Benjamin Franklin? A "long" one is 2,240 pounds, and a "short" one is 2,000. What is it? At how many rpm does a long-playing record spin? A long-whiskered owlet is so rare it has its own genus, Xenoglaux, meaning which kind of owl? What is a lopsided victory in an election called? Walt Whitman sounded his "barbaric" what "over the roofs of the world"? Which word means both a loud resonant sound and a time of prosperity?