Does acetaminophen have aspirin in it?

No. Acetaminophen has no aspirin in it. Acetylsalicylic Acid is aspirin.
No it does not, acetaminophen was introduced into the market as a safer alternative to aspirin.

No, aspirin is not acetaminophen. Aspirin is acetylsalicylic acid. Acetaminophen is the active ingredient in Tylenol and other preparations.