"Talmud changed the Torah-defined and commanded calendar"Shalom Aleichem,This is the problem, where does the "Torah" define the calendar, the written Torah doesn't (though it gives us some guidelines). The calendar is defined by the Oral Torah. You seem to miss the point that in addition to transmitted teachings the Sages also have authority to institute new practices. On what basis do you call this "adding", Daniel prayed three times a day toward Yerushalayim, are you saying he "added" to the Torah?
Yirmiahu,Shalom aleikha,The Jews created this story at about 165 b.c.e. at a time when rabbinic judaism had started to influence the Israelites.Learn more here: LinkPlease also read my newest thoughts about Torah. I think it will be helpful for you in your pursuit to the Will of our Creator:Link
Addition: That is the story of Daniel and his adventures."This is the problem, where does the "Torah" define the calendar, the written Torah doesn't (though it gives us some guidelines). The calendar is defined by the Oral Torah. "Fact is that Rabbis changed the definition of the new moon, etc. You can find it if you study the links I provided.However, I no longer believe that the holidays of Torah are inspired by the Creator.Studying research I found that they have influences from other religions, and that they later on where reinterpreted to have a historical basis in the Israelites claimed history.