Where do historians think leif erickson started a settlement

  Greenland

Explanation: Leif Erikson (also spelled Eiriksson, Erikson, or Ericson) was the second of three sons of the famous Norse explorer Erik the Red, who established a settlement in Greenland after being expelled from Iceland around A.D.980.

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the answer that best explains what happened to george washington at fort necessity, pennsylvania is : washington was attacked by the french but was able to negotiate with them to peacefully end fighting. the battle took place on july 3, 1754. the battle is considered as being the start of the french and indian war.