Elckerlijc (also known as Elckerlyc) is a morality play from the Low Countries which was written in Dutch somewhere around the year 1470.
The authorship of Elckerlijc is attributed to Peter van Diest, a medieval writer from the Low Countries.
It uses allegory of the hero as an "everyman" (a typical human person) and is written in moderately elevated Rederijker style.
The most convincing evidence that Elckerlijc was the original was provided by the English historian E. R. Tigg, who showed how many rhymes and literal translations were copied from the Dutch language play into the English Everyman.
You can help Wikipedia by expanding it.This article on a play from the 15th century is a stub.