Complex sentence: Undertaken for the Purpose of Completing the Discovery of that Vast Country, and Prosecuted in the Years 1801,1802, and 1803, in His Majesty's Ship the Investigator was a sea voyage journal written by English mariner and explorer Matthew Flinders.
Split into simpler sentences: Undertaken for the Purpose of Completing the Discovery of that Vast Country, and Prosecuted in the Years 1801,1802, and 1803, in His Majesty's Ship the Investigator. This was a sea voyage journal written by English mariner and explorer Matthew Flinders.