Star Trek: Deep Space Nine1993

Captain Sisko:
I was just reading one of Akorem's poems, "The Call of the Prophets".

Major Kira:
Oh, that's one of my favorites. It's a shame he never finished it.

Captain Sisko:
He did. Look.

[he hands her the PADD with the poem]

Major Kira:
Now, this is confusing. The last time I read this poem, it ended after the 12th stanza. If the timeline's been changed, then why do I remember things the way they used to be?

Captain Sisko:
The Prophets work in mysterious ways.