How was the institution of slavery defended States’ Right doctrine?

This essay was published in 1788 in response to an article that argued against the ratification of the u. s. constitution. he tells you that the president will have more power than many in princes in according to the essay, what is the effect of dividing control of the military power of the united states between congress and the president?

Igor stravinksy’s ballet, the rite of spring, featured clashing music, harsh sounds and deliberately ugly dancing. upon its premier, theater goers literally rioted in the seats of the venue. historians argue this moment is a “breaking point” where europe proves it is destined to be plunged into world war i. why would historians make such a claim? a people were genuinely angry that someone so bad at composing could make a ballet b the ballet represents colonialism. it showed the consequences of centuries of exploitation of non-european people. c the ballet represents the changing ideologies of modernity. the youth of europe breaking all the old rules and the old guard clinging on to the last bits of power d the ballet represents war itself. it drudged up old rivalries between the french and german peoples, inciting the lust for combat.

Why have the changes made during the civil rights movement of the 1950s and 1960s failed to eliminate the income and educational gaps between groups?