The state had too much power in the confederate
I think the French surrender of Montreal was most significant for Britain as for future America it was, the Battle of Monongahela River when Washington had his first experience with true battle and lost his mentor Braddock.
Skull fossils found by the Leakeys advanced our understanding of human evolution. ... Origins of Humankind.......Mary Leakey's discovery of early human ...
Hope this helps.