Answer:
A letter from Birmingham Jail emphazies time thoughout the letter by saying how many times people have been bysanders of the mistreat African Americans have gone through. When he writes, when you have seen hate filledn in police men it shows all the times in their past or present African Americans have been promised equality and they have just continue to gotten an unfair treatment.
As well, Martin Luther King wrote the letter on the newspaper were he read the clergymen article created a bigger impact as you saw both sides on the same piece of paper.