Understanding how America became a country lends itself to understanding topics such as freedom and diversity for your ELL's. Using the Chatterpic app is a great way to bring historical figures to life. Also Discovery Education has great video clips that help ELL's to visualize the events of the time period. My ELL's created amazing living timelines and historical figure presentations. Below is a good timeline link that students can use as a model for their own timelines and an example of a historical figure report.