Take the following as truth: The Florentine artist was just 25, and justly proud enough to append his signature (the only surviving example), visible on the Madonna's sash . Since a religious fanatic attacked it with a hammer in 1972, the statue is protected by bullet-proof glass.
Then the following statement: "Someone tried to attack the statue in the 1970s." is true, false, or inconclusive?
Answer: True