It's not clear what newspaper you mean. Anyway I've seen this question before and I know the answer. It's A. <span>the Haymarket Square fire.
</span>
Answer:
Middle-class northerners
Explanation:
The middle class of north of US begin to call for abolition.
One of the most famous event was the protest against slavery in Germantown, Pennsylvania.
The group called the Quakers also called friends or friend of church were a christians groups which had involved in abolition of slavery protest.
These events were around 17h century.
Should be the establishment of the environmental protection agency