Final answer:
Ballard's exploration of the Lusitania wreck provided new evidence and insights into the sinking, challenging popular beliefs and intensifying outrage.
Step-by-step explanation:
The exploration of the Lusitania wreck by Ballard re-wrote history by providing new evidence and insights into the sinking of the ship. Ballard's expedition in 1982 discovered the wreck of the Lusitania and revealed that there was a secondary explosion caused by the ship's cargo of ammunition. This challenged the popular belief that the sinking was solely due to the torpedo attack. The discovery also shed light on the circumstances surrounding the sinking and further intensified the outrage against Germany's actions.