Posting this because we got the top hit as the Sub, but there were also big storms. I am sure it was the failed first sub attack, but… Fixation has led us wrong before, so always look at your fact webs. LOL
(self reply)
Note the difference in dates between Wiki and This day in history…
Which is odd. But anyway, the notable parts of that are NY Harbor, the Time Bomb, and first sub (so perhaps NK)