Did you know that it is legal to burn the United States flag? And that the original American flag was not sewn by Betsy Ross, as is popularly believed? (Although it's true that the seamstress did make George Washington's French cuffs.) There are many myths and misconceptions about Flag Day, which will be celebrated on Monday, June 14. For more little known facts, watch the video with historian Ken Davis (author of Don't Know Much About History and America's Hidden History) below or on his website.