There were at least message sticks: https://www.ancient-origins.net/ancient-places-australia-oceania/aboriginal-message-sticks-and-ancient-system-communication-

There were at least message sticks: https://www.ancient-origins.net/ancient-places-australia-oceania/aboriginal-message-sticks-and-ancient-system-communication-001670 https://www.ancient-origins.net/ancient-places-australia-oce... >For instance, one of the message sticks in the Dandiiri Maiwar Exhibition at the Queensland Museum and Science centre is as follows: Bishop White of Carpentaria described how he delivered a message stick on behalf of an Aboriginal boy in Darwin to a boy in Daly Waters. Bishop White asked the boy from Darwin to explain the message. The boy read the message symbols which requested headbands and boomerangs from Daly Waters. The Bishop delivered the message stick and asked the recipient to tell him what the message was. The boy interpreted the message stick exactly as the boy from Darwin had explained it.