when did australia stop using one cent coins
Australian one-cent coin The cent or penny, formally the one-cent coin, was the lowest-denomination coin of the Australian dollar, introduced on 14 February 1966 in the decimalisation of Australian currency until it was withdrawn from circulation in 1992 (along with the two-cent coin)[1][2]
Penny (United States coin) The Lincoln cent is the current one-cent coin of the U.S. It was adopted in 1909 (which would have been Lincoln's 100th birthday), replacing the Indian Head cent. Its reverse was changed in 1959 from a wheat-stalks design to a design which includes the Lincoln Memorial (to commemorate Lincoln's sesquicentennial) and was replaced again in 2009 with four new designs to commemorate Lincoln's bicentennial. There are more one-cent coins produced than any other denomination, which makes the Lincoln cent a familiar item. In its lifespan, this coin has weathered both world wars, one of which temporarily changed its composition as part of the war effort. The obverse is the longest design used for any circulating American currency.