0 Which holiday was observed for the first time on April 22, 1970? Arbor Day Earth Day Labor Day World Environment Day Play Now More questions In which state is the only royal palace in the US located? Play Now Which of these is one of the nicknames of Route 66? Play Now Enter your email to see the answer! By subscribing to TriviaTalent you are agreeing to our Privacy Policy and Terms of Use. See Results
