On the morning of 24 April, 1961, the Swedish warship Vasa was salvaged with a largely intact hull after it had sunk after sailing less than a nautical mile (ca 2 km) into its maiden voyage on 10 August 1628 at Stockholm harbour.
On April 15, 1912, 2:20 AM, British passenger liner Titanic sank after colliding with an iceberg in the North Atlantic during her maiden voyage from Southampton to New York City, US, causing more than 1,500 deaths.