Why do you think John Lewis and other leaders asked the marchers not to fight back against any violence?

In italy, the distance between milan in the north and palermo,sicily, in the south is about 550 miles. in the united states, the distance betweenboston, massachusetts, and savannah, georgia, is about 900 miles. do you think the american revolutionaries of 1776 in the 13 colonies faced some of the same challenges as the patriots who struggled for italian unity in the 1860s?  

Which would make the best heading for this list of notes about the migration of african-americans during the reconstruction era?

What event led stephen decatur to burn the u.s. warship philadelphia?