The history of Australia’s national flag – the blue one, with the stars and the Union Jack – is well known to most Australians. We’re taught it at school.

But do you know the full history of the iconic Aboriginal flag, which in 1995 was also recognised as an official flag of Australia?

Most of us don’t. But an announcement this week by the Prime Minister that taxpayers will pay $20 million to secure the original copyright of the image, and some licence rights, is a chance to change that.

Today on Please Explain, national affairs editor Rob Harris joins Jess Irvine to discuss it.