Which immense tragedy did the argo discover in the early hours of September 1st 1985?

In the early hours of September 1, 1985, the research vessel Argo discovered the wreckage of the Titanic, which sank in 1912 after hitting an iceberg. This immense tragedy resulted in the deaths of over 1,500 passengers and crew members. The discovery of the wreck provided valuable insights into the events surrounding the sinking and initiated a wave of exploration and research into the Titanic's history and artifacts.