Take the following as truth: After anesthesia was introduced in the U.S. in 1844, the phrase came flguratively to mean to `deal with a bad situation resolutely,' as in Rudyard Kipling's lines  Bite the bullet, old man,/ And don't let them think you're afraid. 
Then the following statement: "Anesthesia was first used in the United States in 1844." is true, false, or inconclusive?
Answer: True