When was the Aussie dunny first used?

The term "Aussie dunny" refers to an outdoor toilet commonly found in Australian homes, particularly in rural areas. While the exact date of its first use is unclear, dunnies became prevalent in Australia during the late 19th and early 20th centuries, coinciding with the spread of European settlement. These simple, often wooden structures were a practical solution for sanitation before indoor Plumbing became widespread.