Public Timelines

For educational institutions For teachers For students Cabinet

For educational institutions For teachers For students Open cabinet

Create a timeline

Public timelines

About & Feedback Terms Privacy FAQ

Cabinet Get premium

Donate

jan 1, 1840 - 1840- Barry- first described passage of sperm through zone pellucida

Added to timeline:

NFP History

12 Nov 2017

0

0

808

Date:

jan 1, 1840

Now

~ 185 years ago

About & Feedback Terms Privacy FAQ

Cabinet Get premium

Donate

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

Secured with SSL