Create a timeline

Public timelines

12 h, aug 21, 2020 y - CDC: We know [wearing masks] works

Description:

https://www.cdc.gov/media/releases/2020/t0821-telebriefing-covid.html

Added to timeline:

Nathan Rich: COVID-19 in the USA

28 Apr 2022

20

2

11205

Date:

12 h, aug 21, 2020 y

Now

~ 4 years and 9 months ago

About & Feedback Terms Privacy Library FAQ

Cabinet Get premium

Donate

The service accepts bank transfer (ACH, Wire) or cards (Visa, MasterCard, etc). Processed by Stripe.

Secured with SSL