Original sentence: Instead, the first day of each of the four weeks in the month of Dae is dedicated to the Creator Ahura Mazda.The remaining name/month dedication is to Dae "Religion", which is not a divinity, and hence does not have a jashan celebrated in its honor.These four days are each called Jashan of Dadvah ("Creator")
Edited sentence: Each of those four days is called Jashan of Dadvah ("Creator").The remaining name/month dedication is to Dae "Creator", whose jashan is celebrated on each of the four days (1st, 8th, 15th, 23rd day of the month) that are dedicated to the Creator Ahura Mazda