No NFL team which plays it's home games in a domed stadium has ever won the Superbowl.
Babies are born without knee caps. They don't appear until the child reaches 2-6 years of age.
Sherlock Holmes never said "Elementary, my dear Watson."
Only two people signed the Declaration of Independence on July 4th, John Hancock and Charles Thomson. Most of the rest signed on August 2, but the last signature wasn't added until 5 years later.