33
/
AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
November 1, 2025
81852
7525
2
Create a timeline
Public Timelines
For education
For educational institutions
For teachers
For students
Cabinet
For educational institutions
For teachers
For students
Open cabinet
FAQ
Get premium
Close
Create a timeline
Public timelines
FAQ
About & Feedback
Terms
Privacy
FAQ
Support 24/7
Cabinet
Get premium
Donate
5h 42min, jan 1, 1932 y - The phase contrast microscope was invented.
Added to timeline:
microscope through the years
By
Kaitlyn Hornung
28 Sep 2017
0
0
457
Date:
5h 42min, jan 1, 1932 y
Now
~ 93 years ago
About & Feedback
Terms
Privacy
FAQ
Support 24/7
Cabinet
Get premium
Donate
The service accepts bank transfer (ACH, Wire) or cards (Visa, MasterCard, etc). Processed by Stripe.
Secured with SSL
