Wikipedia page about this book: https://en.wikipedia.org/wiki/Purple_Cow

Release date is 2009-12-12

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"The Purple Cow!" by Gelett Burgess is a short nonsense poem first published in 1895. Originally appearing in Burgess's magazine The Lark with a longer title, this whimsical four-line verse became extraordinarily popular, quoted widely throughout twentieth-century America. The poem's success eventually led Burgess to resent its fame, prompting him to write a response poem expressing his frustration. Its cultural influence spans from presidential humor to ice cream brands and college mascots. (This is an automatically generated summary.)

Original publication data not identified