Vered Noam has shown that the scholion currently printed is a medieval hybrid of two independently written commentaries, nicknamed "Scholion O" and "Scholion P", after the Oxford and Parma manuscripts in which they are found. Often these two commentaries contradict each other, offering entirely different stories for the origin of a holiday. In general Scholion O has more overlap with Genesis Rabbah, the Talmud Yerushalmi, and other sources from Israel; while Scholion P is closer to Babylonian sources. The current Scholion, nicknamed the "Hybrid Version", was created in the 9th or 10th centuries by combining Scholia O and P.