It was mentioned in Artilce I, Section 2
Answer:
On March 3, 1871, President Ulysses S. Grant signed into law the first U.S. civil service reform legislation, which had been passed by Congress. The act created the United States Civil Service Commission, that was implemented by President Grant and funded for two years by Congress lasting until 1874.
Explanation:
One of the main reasons why Bismarck wanted to control the territories of Alsace and Lorraine was mostly because both territories were plentiful and useful territories to have in any country as they were quite developed. It was also good for strategic reasons.
The Europeans in the Caribbean felt the need to bring in enslaved Africans as laborers because the native American Indian workers had become physically weak due to diseases and the Caribbean plantations were in requirement of stronger labor force. The Africans by birth were very strong and they as slaves would perfectly suit the needs of the Caribbean plantations.