The Dictionary of Sydney was archived in 2021.
The earliest recorded excavation of an Aboriginal archaeological site in Sydney which was conducted during the construction of the Alexandra Canal by Robert Etheridge Jnr, Professor TW Edgeworth David and HW Grimshaw. Artefacts included incised skeletal remains of a dugong and stone tool fragments now in the Australian Museum have been radiocarbon dated to over 6000 years old.
