The Perl language is 23 years old. In honor of this, from December 1 to December 24, Perl language developers organized a marathon, in the framework of which one of the developers shared some practical skills on the blog pages that demonstrate various Perl 6 capabilities. The marathon ended with an article by Larry Walla, in which he summarized the 23-year history of the Perl language. Congratulations to all the developers using this wonderful language.