US Factbook and Quiz by ArtelPlus - What do you know about the States, their Capitals and the Presidents of the United States of America? Test your knowledge of the States, Capitals, Nicknames and Presidents on the US States Quiz, States Capitals Quiz, States Nicknames Quiz and US Presidents Quiz. Learn about the US states. For each state you will learn the capital, flag, area, population, abbreviation, nicknames, origin of name, tree, flower, bird, highest point, admission to Union, time zone, website, points of interest, bordering States and interesting facts. Learn about the U.S. presidents. For each president you will learn years in office, political party, birth place and more. Learn about U.S. states capitals. For each state capital you will learn the state, area, population, time zone, area codes, website and more. Here is the complete text of the U.S. Constitution. The original spelling and capitalization have been retained.