33
/
AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
November 1, 2025
2191689
183614
2
Create a timeline
Public Timelines
For educational institutions For teachers For students Cabinet
For educational institutions For teachers For students Open cabinet
FAQ Get premium
Create a timeline
Public timelines
FAQ
About & FeedbackTermsPrivacyFAQ
Support 24/7  
CabinetGet premium
Donate

jul 17, 1609 - Galileo Galilei decides to use the telescope for astronomical purposes.

Description:

Galileo Galilei makes his own refracting telescope and gets the brilliant idea of using it for astronomical purposes. This was also the year he published his very own book and mentions his new creation in it.

Added to timeline:

The Telescope Timeline

ByKatherine Carlos
21 Nov 2018
0
0
407

Date:

jul 17, 1609
Now
~ 416 years ago

Images:

About & FeedbackTermsPrivacyFAQ
Support 24/7  
CabinetGet premium
Donate
The service accepts bank transfer (ACH, Wire) or cards (Visa, MasterCard, etc). Processed by Stripe.
Secured with SSL