You can start it off by defining what depression is and how people become diagnosed with depression and give little facts
Here is a site that could help you.
http://www.shmoop.com/the-star-spangled-banner/meaning.html
Hopes this helps you!
The Liberty Tree (1646–1775) was a famous elm tree that stood in Boston near Boston Common, in the years before the American Revolution. In 1765, colonists in Boston staged the first act of defiance against the British government at the tree.
