This is a good read:

http://www.thefederalistpapers.org/u...out-mussellmen

President Obama has continually asserted that Islam was “woven into the fabric” of the United States since its founding. Obama claims that Muslims have made significant contributions to building of this nation. The claim is laughable to anyone who has studied US history. Historian David Barton spoke to Glenn Beck and tore the president’s claims apart.

Barton found the first real contribution any Muslim made was in 1856 (80 years after the founding) when then Secretary of War Jefferson Davis hired one Muslim to help train camels in Arizona. Not exactly a resounding contribution, since the plan to fight Native Americans via camelback was soon dismissed.