Who was Álvar Nuñez Cabeza de Vaca?

Me and youin the summer of 1804, after meeting native americans for the first time, lewis and clark reached the eastern edge of

How did the russian revolution impact world war i? a) the russians required the allied powers to come to their aid and defeat the radical groups. b) the russians pulled out from the war, enabling the germans to focus on the western front. c) the russians created new technological advancements that were used by the allied powers to win. d) the russians created a new communist government that aligned with the central powers instead.

What was one major cause of worldwide conflict during the first decade of the 21st century?