 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.

Scholia O and P may be just two examples of a genre of commentaries on Megillat Taanit, with a partial scholion in the Babylonian Talmud being a third example, and the other examples not surviving.