He Ran Unsuccessfully For President Of The United States
The answer for this is "Compromise of 1850".
The Compromise of 1850 is a set of laws dealing with the issue of slavery. California was admitted as a free state, upsetting the groups in favor of slavery and satisfying those opposing it in the U.S senate. In Addition, California abolished the slave trade by entering the Union as a free (no slavery) state.
The industrial revolution created more classes, not less. Therefore, arguments about larger gaps in social classes are difficult to support, Prior to the industrial revolution two main classes existed. The landed nobility and their poor farm workers.
I would say Latin America. this is because I've went to many southern American countries and I have to say though many things were beautiful, there was lot and lots of beggars, and many poor things happening
Can you be more specific and add more context? This has happened plenty of times across human history.