You'll be writing a comparison/contrast paper. If you need help with setting one of those up (organization of ideas), go here: http://grammar.ccc.commnet.edu/grammar/ and go into the menu for Essay and Research Paper Level and scroll down until you find Comparison/Contrast.
Declaration of Independence:
Patrick Henry's speech:
Please repost when you get your ideas organized, and someone here will be happy to critique your thinking. You can also post your rough draft if you want feedback on that, too.