Mabo Day commemorates Torres Strait Islander Eddie Koiki Mabo and his role in overturning the “terra nullius” declaration - which claimed that Australia was once land belonging to no-one. To read more about this significant event in Australia's recent history see... https://www.sbs.com.au/news/article/today-marks-the-30th-anniversary-of-mabo-day-heres-what-it-is-and-why-it-matters/85uwh8x1e Credit: NITV / SBS News