The document discusses the history and significance of the kangaroo symbol and anthem used by Qantas airline to represent Australia. It notes that the kangaroo symbol first appeared on Qantas planes in 1944, originating from the Australian penny coin. Over time the symbol changed through four iterations but still signifies the iconic Australian brand of Qantas globally. The document also describes how Peter Allen's 1980 song "I Still Call Australia Home" was featured in a famous 1998 Qantas ad and came to represent feelings of longing to return home for Australians overseas.