To be fair, regardless of how you define any of these categories, the Columbian Exchange is still going to be an automatic first place, so he's not wrong on that count.What are you defining as "civilization"
What are you defining as "an event"
What are you defining as "significant" and "shaped"
1-5. nothing to do with the Greeks
^So now, like, i am supposed to react to that? Just google 'Walken/Wayne's world 2/last guy didn't get it', Wayne
1. Fire
2. Language
3. Farming
4. Industrial revolution
5. Internet