Fishing. Fishing was not a major industry by 1914.
I'm thinking it was Great Britain.
You are most likely referring to the assassinations of Martin Luther King Jr and Malcolm X. The impacts of both of their assassinations was that the Civil Rights movements actually grew stronger, with more African Americans and white Americans coming together to fight for equality on the streets, in Presidential elections, and through activism in Churches. Both MLK and Malcolm X were good men who fought for the rights of African Americans, and they will forever be remembered for their lasting impression on this nation, not only by other African Americans, but by all Americans.
Michigan entered as a free state as it was one of the most north states of the U.S and still is. That meant it was filled of people that had a bad tone towards slavery. Florida is one of the most southern states and was filled with cotton farms in northern Florida ( South Florida was uninhabited by Americans cause there were marches and alligators I;e Everglades) Iowa was also a free state. Iowa was near Michigan and also had a population that disliked slavery.