29
/
en
AIzaSyAYiBZKx7MnpbEhh9jyipgxe19OcubqV5w
April 1, 2024
581212
49146
2
Create
Public Timelines
Library
FAQ
For education
Cabinet
For educational institutions
For teachers
For students/pupils
aug 29, 1921 - The first use of polygraph
Added to timeline:
19 Jan 2018
0
0
184
New timeline
Date:
aug 29, 1921
Now
~ 102 years ago