The first white man to travel the length of california to oregon was

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

What river systems the worlds earliest known civilization develop ?

Consider the events in alfred wegener's life that led to his development of the continental drift hypothesis. review the items below and determine whether each item is (1) an observation that led alfred wegener to develop his continental drift hypothesis, or (2) evidence wegener gathered to support his proposal.