Original sentence: Captain Henry Rous on the HMS Rainbow discovers the entrance to the Richmond River and explored 32 km up the river.Captain Henry Rous on the HMS Rainbow dropped anchor at Byron Bay.Rous subsequently named the river Richmond after the fifth Duke of Richmond
Edited sentence: Captain Henry Rous on the frigate HMS Rainbow discovers the entrance to the Richmond River (the longest navigable river on the coast of NSW) and explores 32 km up the river with two lieutenants in a pinnace, as far as Tuckean Swamp.Captain Henry Rous on the frigate HMS Rainbow dropped anchor at Byron Bay.Captain Henry Rous subsequently named the river Richmond after his brother's best friend, the fifth Duke of Richmond & Lennox