G'day Susan (aka WYSIWYG / The Sugar Dog / Praise),Sorry! I didn't notice this posting (I was distracted by the mess the local computer shop made of the addition of a 30 Gb drive last week and my slow rebuild). I'm not sure I can put a finger on the specific song you mention.
I reckon that " ... how Australia came to be a country ..." depends very much on who you ask ... and when ... and where - and runs very close to sounding like one of those self-congratulatory songs that I usually avoid like the very plague. There have been a few good songs in this line, but they sound better to those that don't have to hear them endlessly repeated by broadcasters ... and I did just list off all the excuses they have had over the past year or so.
If you can give me a few more clues, such as a line or two (a singer and or a date would be nice ...) I will see if I can track it down.
Regards,
Bob Bolton