Muslims Gave The US Everything

Obama spoke before the Turkish Parliament Monday night and talked of Islam and what it has done to shape the world. So far so good. He then stated that Islam has also shaped America. What? Name me, please, something done by followers of Muhammed to make this nation what it is today? Go back to Columbus, slavery, The Revolutionary War, expansion westward, The Civil War. Is he nuts or was he playing to the crowd? Maybe he just doesn't understand history, geography or current events. After all, a few days ago he did refer to Austrians speaking, what else, Austrian.