I think it's interdasting that the https://www.whitehouse.gov/ web page's Digital Certificate expires on April 19, 2021.

On April 19, 1775:

American Revolution begins in Lexington, Massachusetts. The "Shot Heard Round the World" took place in Concord later that day.

https://www.onthisday.com/day/april/19

https://www.onthisday.com/photos/the-shot-heard-round-the-world

https://www.globalsign.com/en/blog/how-to-view-ssl-certificate-details