During the Tang Dynasty were farmers able to develop new kinds of rice that grew well in poor soil

How did americans disagree over the role of federal and state goverment before and durning the civil war

The low and midlevel clouds that look like cotton balls are

Which effect did the united states supreme court's decision in plessy v. ferguson have? 1. ending segregation in all public schools in america 2. protecting voting rights for african americans by eliminating literacy tests 3. upholding the rights of all citizens to be treated equally by the government 4. authorizing the system that kept black and white people separated