Portal:Australia/Anniversaries/April/April 30




 * 1831 – Captain Collet Barker, the first to explore the area around present-day Adelaide, South Australia, is killed by Aborigines near Lake Alexandrina.
 * 1915 – During the Gallipoli Campaign, HMAS AE2, a Royal Australian Navy submarine, is sunk by enemy shellfire in the Sea of Marmara in present-day Turkey.
 * 1969 – Sir Paul Hasluck is appointed Governor-General of Australia, succeeding The Lord Casey.
 * 1988 – World Expo 88 (pictured), part of the Australian Bicentenary, opens in Brisbane, Queensland.
 * 2003 – Chinese-born stockbroker Rene Rivkin is found guilty of insider trading in relation to a purchase of 50,000 shares in Qantas, the national airline of Australia.
 * 2006 – Miners Brant Webb and Todd Russell are found alive five days after a mine collapse in Beaconsfield, Tasmania.