Go to the link that Technical Editor provided.
On the ‘blank’ part of the page, right click and and select ‘view page info’.
Shows the modified date as :Tuesday, June 05, 2007 7:15:37 AM
That information is provided directly from the site it is posted on.
Thanks
Of course, that could also be produced by changing the date on your computer before you save the file.
The date information could have been easily faked on the original site along with the Australian BC.