Que quiere decir Paleolitico?

How did the american revolutionary war change how some americans viewed the enslavement of african americans?

When conducting research for forming a hypothesis, which practice should historians follow?

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?