Countdowns

10 Events That Changed History

Countless events have changed history, but some stand like a switch that sends a train on a completely different track. They alter the course of civilization, even if their impact isn't felt right away. From ancient Greek politics to modern technology, here are 10 of the most significant historical events -- in relatively modern times -- that reverberate powerfully still today.

And yes, you are encouraged to discuss below the gazillion events that aren't on this list! Also, follow the links to read the full story about each event.

-- Heather Whipps, LiveScience's History Today columnist.