The island of Manhattan derives its name from its earliest inhabitants, the Manhattan Indians.
10 seconds sound clip from the The Seven Year Itch (1952) movie soundboard.
You can hear this line at 00:02:26 in the Blu-ray version of the movie.
Quote context
[...]
- The island of Manhattan derives its name from its earliest inhabitants, the Manhattan Indians.
- They were a peaceful tribe - setting traps, fishing, hunting.
- Actually, our story has nothing whatsoever to do with Indians. It plays 500 years later.
[...]