LIFE'S GREAT QUESTIONS

With hopefully straightforward answers. A list to be updated / added to frequently
  1. Why is lettuce and tomato complimentary on every sandwich, everywhere?
    What hero started this and how did it sweep the nation (world?)
  2. What do the other "T"'s in ITT Tech stand for? And why isn't it just "ITTT", if the following word is Tech?!
  3. Will there ever be a time when Fat + Pale becomes a hot trend again, like back in the 1700's?
  4. Where are all the baby pigeons?
    Have you or anyone you know ever seen one?!
    Suggested by   @Adubs