This is a list of events of Once upon a time... from Age of Earth to Future.

Key Edit

Event featured in/referred to in:

Prehistory Edit

5,000,000,000s BC Edit

4,600,000,000s BC Edit

4,000,000,000s BC Edit

3,500,000,000s BC Edit

Human prehistory Edit

Ancient history Edit

2700s BC Edit

2000s BC Edit

Middle Ages Edit

1490s Edit

Contemporary history Edit

1970s Edit

Futuristic Edit

2150s Edit