What led to the passage of the 15th amendment? and what are the advantages of adopting the 15th amendment?

15th Amendment: "The right of citizens of the United States to vote shall not be denied or abridged by the United States or by any State on account of race, color, or previous condition of servitude."

This should give you the idea I hope this helps :)

What led to the passage of the 15th amendment was the rising discrimination between different racial, sex, and social groups within the united states. It was ratified during the first or second reconstruction after the civil war, it granted blacks to vote along with women and foreign immigrants. another reason was due to the KKK, the Black codes, the Jim Crow laws, along with the rising "red scare" or the threat of communism in america at the time.

The advantages was to make these individuals feel safer and more free when exercise their basic human rights, but it also meant more votes in elections. Another advantage was to help stop discrimination.

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because his fleet was much lager than the english fleet. i hope this .