Has the story of the u. s. between 1877 and today been one of growing national unity or one of continued and powerful regional differences?

The story can be said to be one of growing national unity in terms of geography, but toward a bipolar USA reshaped by Ideological differences but united with an american Identity of Liberty and capitalism.

The year 1877 marking the end of reconstruction following the compromise after a bitterly contested elections is the genesis of an end to powerfully divisive regional differences, to a shift into an ideologically defined form of politics in terms of liberalism and conservativism that is witnessed today.

a reason that was key to coolidge's victory in the 1924 presidental election was that; democratic party supporters were split in the north and south.

(d). gave voting rights to free african americans and white women.