Definition: Rewrite each original sentence in order to make it easier to understand by non-native speakers of English. You can do so by replacing complex words with simpler synonyms (i.e. paraphrasing), deleting unimportant information (i.e. compression), and/or splitting a long complex sentence into several simpler ones. The final simplified sentences need to be grammatical, fluent, and retain the main ideas of their original counterparts without altering their meanings.
Input: It was founded circa 1958 – 1959 by Malaclypse the Younger with the publication of its principal text, the Principia Discordia.

It was founded around 1958 and 1959 by Malaclypse the Younger. It was with the publication of its principal text, the Principia Discordia.