Tweedledum and Tweedledee enantiomorphs — three-dimensional mirror images. Evidence for these assumptions cannot be found in any of Lewis Carroll's writings. Tweedledum and Tweedledee Tweedledum and Tweedledee are fictional characters in an English nursery rhyme and in Lewis Carroll's "Through the Looking-Glass, and What Alice Found There". Their names may have originally come from an epigram written by poet John Byrom. The nursery rhyme has a Roud Folk Song Index number of 19800. The names have since become synonymous in western popular culture slang for any two people who look and act in identical ways, generally in a derogatory context. Common versions of
The Walrus and the Carpenter the poem, which is recited by Tweedledum and Tweedledee to Alice. Walking upon a beach one night when both sun and moon are visible, the Walrus and Carpenter come upon an offshore bed of oysters. Groups of four are called up; the exact number is unknown. To the disapproval of the eldest oyster, many more follow them. After walking along the beach (a point is made of the fact that the oysters are all neatly shod despite having no feet), the two main characters are revealed to be predatory and eat all of the oysters. After hearing the poem, the