What is a perhitoric?

What was good about the middle ages? What fear of foreigners during the 1920's was part of the return to? How much is a 1920s circa fire hydrant worth? What is the difference between the transcontinental railroad and the Oregon trail? What does a round table represent? How did the franks create a kingdom in western Europe? How many days are there in 2000 years? Who was Vergangenheitsbewältigung was coined by? What are 2 social classes called in Rome? Why didn't the western democracies stop the aggression? What happened to a gladiator when they lost? Westernmost point of Lewis and clark expedition? Do the Mongols exist? What is the difference between a chancellor and an emperor? Roman name for judah? Who did peasants work for? Why did peasants join the first crusade? How did increased contact between east and west help to spread renaissance ideas? Why did the Crusades choose to go on a Crusade? Who were the Asian invaders of the Roman Empire who were stopped at the battle of Troyes in 451 AD?