Who's Who on Australian currency notes

Australian currency notes celebrate the people in the country's history who have significantly contributed to the betterment of society.

Australian currency pictured in Sydney, Thursday, Sept. 11, 2014. (AAP Image/Joel Carrett) Source: AAP

In 1998, Australia became the first country in the world to use plastic in currency notes.

Several notes have been released since then with new security features to control counterfeit money.

Every note has two sides each depicting a famous Australian.

Can you guess who they are?