Which group opposed the spread of slavery during the 1880 presidential election?

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Explanation:

A major cause of the defeat was that the new Free Soil Party, which opposed slavery expansion, split the Democratic vote, particularly in New York, where the electoral votes went to Taylor. The Free Soil Party attracted Democrats, and some Whigs, and had considerable support in the Northeast.

b]to spread the message of black power

the fact that could also be added to column b is that during world war ii, specifically between the years 1941 and 1945, japan expanded its territory towards the indonesian territory in what was known later as part of the "pacific war". in that time, japan could conquer the philipines, singapore,   borneo, central java, malang, cebu, sumatra and various other islands of the area, therefore expanding its territory for a brief period of time.