41
/
September 30, 2026
3117572
274530
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
Pricing
Donate
apr 30, 1799 - Humphrey Davy
Description:
discovers pain killing probities of NO2 it was used heavily in dentistry
Added to timeline:
GCSE AQA Medicine through time
By
isaac
5 Jun 2019
0
0
2665
Date:
apr 30, 1799
Now
~ 227 years ago
About & Feedback
Terms
Privacy
FAQ
Support 24/7
Pricing
Dashboard
The service accepts bank transfer (ACH, Wire) or cards (Visa, MasterCard, etc). Processed by Stripe.
Secured with SSL
