41
/
AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
May 31, 2026
86311
7978
2
Create a timeline
Public Timelines
For organizations
For companies
For educational institutions
For teachers
For students
Dashboard
For educational institutions
For teachers
For students
Dashboard
FAQ
Close
Create a timeline
Public timelines
FAQ
About & Feedback
Terms
Privacy
FAQ
Support 24/7
Dashboard
Get premium
Donate
dec 30, 1931 - In 1932 German bacteriologist Gerhard Domagk announced that the red dye Prontosil is active against streptococcal infections in mice and humans.
Added to timeline:
Engineering 2 9/29/17
By
Josiah Valery
2 Oct 2017
0
0
885
Date:
dec 30, 1931
Now
~ 94 years ago
About & Feedback
Terms
Privacy
FAQ
Support 24/7
Dashboard
Get premium
Donate
The service accepts bank transfer (ACH, Wire) or cards (Visa, MasterCard, etc). Processed by Stripe.
Secured with SSL
