Ask HISTORY — History Q&A » Economy http://www.history.com/news/ask-history Myths debunked, truths revealed and your most burning history questions answered. Wed, 22 May 2013 11:00:17 +0000 http://backend.userland.com/rss092 en Where did the dollar sign come from? http://www.history.com/news/ask-history/where-did-the-dollar-sign-come-from Why do coins have ridges? http://www.history.com/news/ask-history/why-do-coins-have-ridges