Because the tragedy of karbala was first written by Abu mukhanaf loot bin yahya who was a shia.
& what troubles me more is that why 3500 sahabas didnt revolt against yazeed after Hussayns death?
Why did Hazrat zainab Ra decide to live in the same city in which yazid was living after the accident of karbala?
Why was Zainul abideen spared & all the rest killed?
Read my earlier post again, and understand where I read up the story of Karbala.
3500 companions alive 50 years after the Prophet (SAW)? Where'd you get that figure from?
Ali ibn Hussain (RA) was sick in the tent, and therefore was unable plus denied entry on the Battlefield. I believe he was about 18/19 years of age at that time.
Sakina, was a young child at the time, and the ones who attacked him or carried out the knock-out blow are the ultimate asssiains no doubt, but it was ibn Ziyad who replace the gentle fella' Numan ibn Bishr, why? He had a sound reputation, so why did Yazid send ibn Ziyad to boot him out and take charge? So, they could have a cold drink together? He's responsible for the death of Muslim ibn Aqeel (RA) who refuse to cooperate or was it a ghost who shoved him off the edge of the tower? I'm sure it was his cronies.
It was ibn Ziyad calling the shots then, and who commanded the army to block Hussain (RA) from entering calling the shots. Since he was too pig-headed to accept one of the conditions Hussain (RA) forward it resulted in war, so he's to blame for the death of all the members of Ahlul Bhait (RA). Thus by extension Yazid also takes a share of the blame for appointing him to begin with.