Original: The first overland expedition to reach the Gulf was the Burke and Wills expedition, led by Robert O'Hara Burke and William John Wills which left Melbourne in August 1860 and reached the Bynoe River in February 1861.
Simplified: The first overland expedition to reach the Gulf was the Burke and Wills expedition, led by Robert O'Hara Burke and William John Wills. They left Melbourne in August 1860 and reached the Bynoe River in February 1861.