33
/
AIzaSyAYiBZKx7MnpbEhh9jyipgxe19OcubqV5w
August 1, 2025
2904753
251728
2
Public Timelines
Public TimelinesFAQ
Public TimelinesFAQ
For educational institutions For teachers For students Cabinet
For educational institutions For teachers For students Open cabinet
Create
Create a timeline
Public timelines
Library
FAQ

may 1, 100 BC - Pilinio explicó el uso de mascarillas de protección

Description:

por los trabajadores expuestos al zinc y al azufre.

Added to timeline:

Linea del Tiempo

ByDamián López Villar
4 Apr 2019
0
0
366

Date:

may 1, 100 BC
Now
~ 2127 years ago

Images:

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