Black Thursday bushfires
The Black Thursday bushfires were a devastating series of fires that swept the Port Phillip District (now the state of Victoria) in Australia, on 6 February 1851, burning up 5 million hectares (12 million acres; 50,000 square kilometres; 19,000 square miles), or about a quarter of the state's area. Twelve people died, along with one million sheep, thousands of cattle and countless native animals.