How did the ruling on the dred scott case affect the slavery debate?

Which progressive reform was least related to the causes and effects of world war i? o legislation limiting the use of child labor o establishing 8-hour workdays for railroad workers o reducing tariffs on imported goods o expanding women's rights and the right to vote

Why did france demand that germany repay their debts in foreign currency?

The information box says that the han added 4,000 miles of wall.refer to the mileage scale.how can this be true?