What is the greatest American accomplishment?

What is a brick called with mud and straw? What do we know about the story of Henry II and Thomas Becket? What does it mean when a ration said spare during World War 2? Which country was irritated when colonists began shipping through New Nether land to avoid its taxes and regulations? Where do convicts live? Why wasn't the highball ever used in World War 2? Where are the flaws on a Susan b Anthony dollar? A basin of shallow water linked to the sea by an inlet? Why did the national organization for women promote the passage of the equal rights amendment? What are the seven powers mentioned in the articles of confederation? What is the record number for most rushing touchdowns in a single season? What are two essential conflicts Jackie Robinson had to face to achieve his achievements or goals? Why were the Chinese so discriminated a immigrants? What was the Length of an Officers tour of duty in Vietnam? What is the symbol of zoroastrians? How did Reagan help end the cold war along with Soviet leader Gorbachev? How did the Mongol Empire become one of the largest empires in the world? What can historians use if they are not sure of an exact date? Which countries did the Huns take over? What is the last digit in the ISBN number for Ann E Barro?