The 26th of January marks the day in 1788 when the First Fleet arrived in Sydney Cove, beginning the British colonisation of Australia.
Now commemorated with a public holiday, millions see it as a time to celebrate all that they love about being Australian.
But for many Aboriginal and Torres Strait Islanders, it's a day of pain.
Across the country, tens of thousands of people spend the 26th of January participating in 'Invasion Day' events.
Adam Thompson is a Community Education Worker at the Tasmanian Aboriginal Centre, and organiser of Devonport's Invasion Day rally.
He says Invasion Day means different things to different people, with some using it to honour those killed by white settlers during the Frontier Wars.