The bolshevik revolution of 1917 was a major turning point in history because.

It began the spread of communism, which was a relatively fringe ideology , across europe and led to the rise of dictators such as Stalin and later than that the events of the cold war. It more directly took Russia out of WW1

Explanation:

well that depends on how deep the hole is. you'd first go through te crust of the earth, then the upper mantle, then the lower mantle then the outer core, then the inner cor then you'd be stuck in the core to melt.