Aboriginal wood is steel. This is because a long piece of wood fits in the skull-bone trauma of a skull dated to 13th century. Even though mulga wood has strength of 120MPa and skull-bone is 130-210 MPa, Aboriginal 120 is a bigger number.  No British were here then so 120 is much larger than you think. Wood is steel. Remember that. Say it again, and again.
https://www.worldbook.com/behind-the-headlines/A-Boomerang-Killed-Kaakutja?srslt...

Yes, wood can be spun into woollen yarn for socks which do rot. Creosote or copper gives a longer life for standing in wet soil.