Why did louis xvi call a meeting of the estates general?

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

Which describes a significant different between the north and the south in the year leading up to the civil war

Which answer best describes the u.s. national road? it ran from atlanta to baltimore and followed the railroad. it ran from new york to chicago and was made from wooden planks. it ran from massachusetts to ohio and ran parallel to the canal system. it ran from maryland to illinois and was made using macadam construction.