Conversation so far:
why is australia's colours green and gold
The national color, gold, conjures images of Australia’s beaches, mineral wealth, grain harvests and the fleece of Australian wool. Green evokes the forests, eucalyptus trees and pastures of the landscape
when were green and gold formally recognized as australian national colors
In 1984, green and gold were formally recognised as Australia's national colours with widespread community support.

Question: what was the first sporting team that wore the colors
Self-contained rewrite: what was the first australian national sporting team that wore green and gold