Amina Inloes, Amina Inloes is originally from the US and has a PhD in Islamic Studies from the University of Exeter on Shi'a hadith. She is the program leader for the MA Islamic Studies program at the... Answered 2 years ago

Possibly, some of the hadith saying that many important things in ancient sacred history happened on this day were fabricated in the time of the Umayyads to take attention away from the martyrdom of Imam Husain (A).

Of course, God knows best, and if miraculous or amazing things happened in the past on this day, it is something that He would know the reasons for.