Conversation so far:
when was the first african-american police officer hired in the united states
The first african american police officer was appointed in 1878.
who was the first african american police officer
Horatio J. Homer was Boston's first African-American police officer. He was hired by the Boston Police Department in 1878.
how long was horatio homer in the force
Horatio J. Homer served on the force for 40 years.

Question: any achievements
Self-contained rewrite: did horatio homer have any achievements while in the force