What are humanity's greatest milestones?

Question

In terms of human development, I mean. Eg, first it was fire, then domesticated animals, then wheels?

Also, bonus, what is (or what will be) the next great achievement of the human race?

Answer 1

Future: Teleportation, time travel, climate / weather control, virtual immortality... and world peace

Answer 2

The greatest of all must surely be the moon landings.

Answer 3

the invention of the printing press, as well as ramen noodles. (close second)

Answer 4

Strangely enough, compatibility. Think about it.

Answer 5

the wheel because really helped us----developing a new renewable fuel

Answer 6

I'd say the electric converter.

I don't know, teleporter maybe?