"We come then to the question presented: Does segregation of children in public schools solely on the basis of race, even though the physical facilitiesmay be equal, deprive the children of the minority group of equal educational opportunities? We believe it does."

The answer is "Brown v. Educational Board of Topeka".

Explanation:

In US government schools the institutional racism was declared unconstitutional, by the seminal Supreme Court decision and also more divided were its public universities now, it ever was four decades ago.

In 1954, the majority decision in the banner of the Brown v. Educational Board of Topeka (Kansas), supreme court judge Earl Warren. School systems' report details apartheid was a violation of the fourth amendment and therefore unconstitutional.

the factors that the economies of the muslim empires prosper were:

1- land trade routes-located between three continents  

2- sea trade routes

trade contributed to the spread of muslim empires, and with that islamic culture led to a growing feeling of internationalism resulted in the transfer of technology, science, and other cultural forms.

money is the anwser i think