External References

• Polyglot - a program in eight languages
• The Polyglot List
• Palindrome-Polyglot-Qunine (Stack Exchange)
• Polyglot (Esolang)

Perl Monks References

• The Lighter Side of Perl Culture (Part III): Obfu by eyepopslikeamosquito -- see the "Multi-Lingual" and "References" sections (search for polyglot)
• List of polyglot obfus (Re: Christmas poem since 1988) by ambrus

• P(erl|ython) by BooK
• 'nother P(erl|ython) Hacker by BooK
• The Best Ever by BooK

• Polyglot Japh by Dedalus
• Hello World in four languages... at the same time by AlexL
• perl is lisp by jagh
• Dual language by smeezekitty
• Perl Python Partial Polyglot by kschwab
• Perl Golang Partial Polyglot by kschwab

• Christmas poem since 1988 by anonymous
• 10 languages by anonymous
• Christmas felicitations, 2006 update by anonymous

Oh, that reminds me. [answer-chaining] Add a language to a polyglot on Code Golf Stack Exchange. This is one of the polyglots with the highest number of languages, a collaborative project where every poster adds another language without ruining the existing ones.

Which reminds me of quine-relay - circular quine in 128 languages at the moment.

($q=q:Sq=~/;[c](.)(.)/;chr(-||-|5+lengthSq)`"S|oS2"`map{chr |+ord
}map{substrSq`S_+|`|}3E|-|`7**2-3:)=~y+S|`+$1,++print+eval$q,q,a,
[download]