The Hidden Publishing Date

Yesterday afternoon, in the CALL class, the publishing date of the article, Heathrow terminal 5, was not found when Sally mentioned one of the sentences of Heathrow terminal 5:

“...on 27th March a fifth terminal opened to help…”

I found later that the clue to figure out what date the article, Heathrow terminal 5, was published can be referred to STORY ARCHIVES of BBC Learning English – News about Britain, whose web link is:

http://www.bbc.co.uk/worldservice/learningenglish/
newsenglish/britain/archive_2004.shtml

The hyperlink to the archives of News about Britain can also be found on the right-hand column in the index.shtml of News about Britain:

http://www.bbc.co.uk/worldservice/learningenglish/
newsenglish/britain/index.shtml

Nonetheless, we can just tell that Heathrow terminal 5 was published in April 2008 according to the list in the archives, so the real publishing date of Heathrow terminal 5 is still unknown.