What is the historical basis for using sidewalks for dissent?

Assignment instructions and rubric are in the files I dropped, but basically, you have to write an essay on the questions below and use the book chapter attached below as the main source.

Write an essay that responds to the following questions:
1. What is the historical basis for using sidewalks for dissent?
2. How do cities control political dissent on streets and sidewalks? What is the basis of their authority to do so?
3. Why do cities try to control political dissent?
4. Why do protests happen?
5. Do the examples of Seattle, Los Angeles, and Miami help us to understand the Black Lives Matter protests and response in Portland?