33
/
AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
November 1, 2025
3754318
344232
2
Create a timeline
Public Timelines
For education
For educational institutions
For teachers
For students
Cabinet
For educational institutions
For teachers
For students
Open cabinet
FAQ
Get premium
Close
Create a timeline
Public timelines
FAQ
About & Feedback
Terms
Privacy
FAQ
Support 24/7
Cabinet
Get premium
Donate
jan 1, 151 BC - Ptolemy refines the geocentric model of the universe to try to explain the retrograde (east to west) motion of the planets.
Added to timeline:
science
By
Matthew Zanetic
12 Feb 2020
0
0
265
Date:
jan 1, 151 BC
Now
~ 2178 years ago
About & Feedback
Terms
Privacy
FAQ
Support 24/7
Cabinet
Get premium
Donate
The service accepts bank transfer (ACH, Wire) or cards (Visa, MasterCard, etc). Processed by Stripe.
Secured with SSL
