How much progress did America make toward racial equality during Reconstruction ?

What was the 1787 constitutional convention? !

Which of the islamic empires (ottomans, mughals, safavids) were the most influential and why?

Which describes a contribution from classical rome to modern western civilization? a. international gathering to celebrate sporting achievement b. written constitution based on natural rights c. large infrastructure projects to benefit the public d. direct election of the ruler by all residents of the empire