Before British colonisation, there were more than 250 languages spoken on this continent. Less than half survive today, and most of them are under threat. In a live episode of their hit podcast, Archive Fever, historians Yves Rees and Clare Wright are joined by special guests Cheryl Leavy and Paul Girrawah House to discuss orality as archive: how language helps us know the past and why the work of language revitalisation – bringing languages back to life – is so vital to the future.