Portal:Australia/Anniversaries/March/March 31




 * 1909 – Victoria is the last Australian state to grant women's suffrage.
 * 1921 – The Australian Air Force is established, it officially becomes the Royal Australian Air Force in August.
 * 1928 – The first Australian Grand Prix motor race was held at Phillip Island.
 * 2002 – Janelle Patton becomes Norfolk Island's first murder victim in 150 years.