Who was the first black history?

Why would the saudi’s oil industry need a large investment in human capital

Which word best describes early america foreign policy ?

Is the weather changing? consider the data of severe weather that includes tornadoes occurring throughout the u. s. over the last four years. compare the severe weather for the last three years. then compare the first three months of 2017 with that data. based on previous years, what might the prediction be for weather during 2017?