On this day in 1845, Ludwig Leichhardt, named the Mitchell River in North Queensland.
Ludwig Leichhardt was born in Prussia, studied in Germany and was a passionate botanist. He left on an expedition from the Darling Downs in Queensland to Port Essington, near Darwin, in October 1844 and named the Mitchell River (for Sir Thomas Mitchell) on 16th June 1845.
Overland expedition to Port Essington by L. Leichhardt. Laid down by S.A. Perry. Sydney, 1845