I think its was the civil war
The answer is A. The freedmen's bureau was created to help former slaves. They didn't help out the whites. They helped blacks only. As for B, if your curious as to what organization did that, it was called the Freedmen's School. :)
Answer:
These things killed people
Explanation:
How did zeppelins improve the industry or society?
During their brief, but deadly dominance the airships killed more than 500 people and injured more than a thousand in places all down the east of the country. The last ever attempt to bomb Britain by a Zeppelin was over the Norfolk coast on 5 August 1918.
1) few advancements in scientific knowledge were made