Matthew Flinders was captured by the French on the island of Mauritius in 1803. He was kept prisoner until 1810 on the grounds that he was a spy. Therefore, he was imprisoned for about 7 years.
Matthew Flinders undertook several different journeys of exploration around Australia, each of differrent duration.
Between 7 October 1798 and 12 January 1799, Matthew Flinders and George Bass...