The Berenstain Bears

The Berenstain Bears is a series of children's books, and two cartoons that were both adapted from the book series, by Stan, Jan, and later Mike Berenstain, about a family of bears that teaches morals.

There are many people who misremember the series as being titled as "Berenstein", with an "E", even leading to the (usually tongue-in-cheek) suggestion that the ones who remember it as "Berenstein" are from a parallel universe or that a time traveler accidentally changed the name via the butterfly effect.

However, seeing as the books were named after their authors, this can't be true unless the authors' names were different in the parallel universe, or the time traveler changed the authors' names as well as the books. In addition, Michael Berenstain asserts that his last name is indeed spelled with an "A", but that people have often gotten it wrong.

Possible Explanations

 * Not very many surnames end in "-stain", but many end in "-stein", which could cause confusion. Similarly, "Berenstain" is similar to the last name "Bernstein".