One reason is that the taxes were unfair. The colonists thought that they should have some say in government. Sometimes they were taxed on stuff that was so little that it shouldn't have had taxes. These are just some that I can remember. Hope this helps!
The Privy Council goes back to the earliest days of the Monarchy, when it comprised those appointed by the King or Queen to advise on matters of state. As the constitution developed into today's constitutional monarchy
The U.S. Bureau of Refugees, Freedman's and Abandoned Lands, popularly known as the Freedmen's Bureau, was established in 1865 by Congress to help former black slaves and poor whites in the South in the aftermath of the U.S. Civil War ,1861-65.
You could start off with the news report about how Soviet and U.S almost started another war due to a missile crisis with Cuba or how soviet's government is different from ours. Basically compare and contract Soviet and U.S.
Hopefully this can get you a head start
Have a great day :)