29
/
en
AIzaSyAYiBZKx7MnpbEhh9jyipgxe19OcubqV5w
April 1, 2024
3602836
328933
2
Create
Public Timelines
Library
FAQ
For education
Cabinet
For educational institutions
For teachers
For students/pupils
jan 1, 1779 - Filtering process found to remove the fertility of frog sperm
Added to timeline:
12 Dec 2019
0
0
171
Ethics Timeline
Date:
jan 1, 1779
Now
~ 245 years ago