Australia’s national day has its roots in the country’s colonial past.It marks the day when the First Fleet of 11 British ships sailed into Port Jackson with Governor Arthur Phillip raising the British flag in Sydney Cove on 26 January, 1788. Many Indigenous Australians regard it as ‘Invasion’or ‘Survival’ Day.How has the meaning of Australia Day changed over time? - Australiar national deen hode iba agor colonial zaman lotí curu oiyé. Deen iba basi rekiye de zeí deen loti11 British or fani Jas Port Jakson oFoínce. Govenor Arthur Philip ye British or bouta tulidiye Sydney Cove ot 26 January 1788 ot.