There were attempts to regulate anagram formation, an important one in English being that of George Puttenham's Of the Anagram or Posy Transposed in The Art of English Poesie (1589).
Boli tu pokusy regulovať tvorbu anagramov, dôležitá v angličtine bola práca George Puttenhamovej Anagram or Posy Transposed v The Art of English Poesie (1589).