In October 1967, Fidel Castro confirmed that it was "sadly true" that which revolutionary had been killed in Bolivia?

London's thick "pea soup" or "pea-souper" was a famous kind of what weather condition? Which degree did Condoleezza Rice earn from the University of Denver in 1974? Conducted by the U.S. government every 10 years since 1790, what is a major resource for people tracing their ancestors? Old English "coney garths" and "pillow mounds" were built to house which animals? Which capital of the Democratic Republic of the Congo was founded by explorer Henry Morton Stanley? Which document did Congress adopt in 1777, though it was not ratified by all the states until 1781? Who was the U.S. president when Congress declared war on Britain in 1812? Congress authorized U.S. commemorative coins for which event held in 1984, 1992 and 1996?