November 12, 1955. That was the date I went back... That was the date of the famous Hill Valley lightning storm.
9 seconds sound clip from the Back to the Future Part II movie soundboard.
You can hear this line at 00:57:04.179 in the Blu-ray version of the movie.
Quote context
[...]
- You heard him, girls. Party's over.
- Start talking, kid. What else you know about that book?
- First, you tell me how you got it. How, where and when.
- All right. Take a seat. Sit down!
- November 12, 1955. That was when.
- You know your history. Very good.
- I'll never forget that Saturday.
- I'd just picked my car up from the shop, 'cause I'd rolled it in a drag race a few days earlier.
- I thought you crashed into a manure truck.
[...]