The shipwreck revealed various historical artefacts, including a bottle bearing a glass seal with the crest of the Legge family - ancestors of the first U.S. President George Washington.
"Because the ship sank so quickly, nobody would have rescued anything," Jowitt said, describing it as "a fantastic time capsule".
Other artefacts include navigational equipment, personal possessions, clothes and wine bottles - some with their contents intact.
The university estimated that between 130 to 250 people might have died in the incident, which they said had threatened to change the course of history.