Anonymous ID: 916290 Feb. 14, 2018, 4:07 p.m. No.377699   🗄️.is 🔗kun

9/7/1776 - 1st submarine attack in history.

 

http:/ /www.history.com/this-day-in-history/worlds-first-submarine-attack

 

Also interesting, 9/9/1776 was when the U.S. officially became the U.S.

 

http:/ /www.history.com/this-day-in-history/congress-renames-the-nation-united-states-of-america