33
/it/
AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
November 30, 2025
495255
145607
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
Close
Create a timeline
Public timelines
FAQ
About & Feedback
Accordo
Privatezza
FAQ
Support 24/7
Cabinet
Get premium
Donate
Discovers over 2,400 Cepheid variable stars and created her period-luminosity theory (1 gen 1902 anni – 28 apr 1904 anni)
Aggiunto al nastro di tempo:
Henrietta Leavitt
By
Shawn Cunning
2 ott 2018
0
0
499
Data:
1 gen 1902 anni
28 apr 1904 anni
~ 2 years and 3 months
About & Feedback
Accordo
Privatezza
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
