Describe how alfred wegener developed the idea of a "supercontinent" and why many scientists rejected his theory

Alfred Wegener suggested the existence of a supercontinent called Pangea or Urkontinent in his work “The Origin of Continents and Oceans”. He postulated, based on the amazing fit of Africa and South America, similar rock formations and various fossil evidence that some 200 million years ago there was only one continent called Pangea. After Pangea broke other continents drifted, over millions of years, to the positions they have now. To say that the reaction to this was negative would be an understatement. The causes for the uproar of the scientific community of that time were the proposed speed of the continental movement, the fact that they viewed Wegener as an outsider because he was a meteorologist and not a geologist and the general resistance to a dramatic change in an established theory. But with the mounting evidence, in time, the theory could not be denied. Now with the GPS we can even measure directly how much the continents move.  

texas governor sam houston opposed secession, but was unable to prevent it. in this speech, given prior to lincoln's election, he presents the argument that slavery would be safer within the united states than outside of it. it was a prescient argument, and one held by several other southern leaders.

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