For Perl history buffs, there is a wealth of information available in this long London.pm 25 Years of Perl mailing list thread.
Though there are a number of Perl talks available at Shadowcat Systems LPW 2012 youtube channel, I couldn't find davorg's "25 Years of Perl" talk among them.
See also a detailed article at the Perl Foundation: The First Twenty-Five Years by Mark Keating (mdk)
A foolish day
Just another day
Internet cleaning day
The real first day of Spring
The real first day of Autumn
Wait a second, ... is this poll a joke?
Results (541 votes),