Check out the web sites listed below and use them to do some research. Then create an advertisement for the “American Legacy.” Include pictures showing the most important American invention and the most important American idea. Also include a written justification for why you chose those ideas. 

http://www.csmonitor.com/Business/2011/0217/American-Innovation-13-Born-in-the-USA-inventions/Cotton-Gin

http://www.cnn.com/2015/03/16/us/gallery/us-inventions/

http://www.biographyonline.net/ideas-that-changed-the-world/