29
/
en
AIzaSyAYiBZKx7MnpbEhh9jyipgxe19OcubqV5w
April 1, 2024
325634
28371
1
Create
Public Timelines
Library
FAQ
For education
Cabinet
For educational institutions
For teachers
For students/pupils
apr 21, 1630 - Dialogue Concerning the Two Chief World Systems
Added to timeline:
22 Nov 2017
0
0
315
speech3_pt1
Date:
apr 21, 1630
Now
~ 394 years ago