It was possible for Hussain to save his life by submitting himself to the will of Yazid. But his responsibility as a reformer did not allow him to accept Yazid’s Caliphate. He therefore prepared to embrace all sorts of discomfort and inconvenience in order to deliver Islam from the hands of the Omayyads. Under the blazing sun, on the parched land and against the stifling heat of Arabia, stood the immortal Hussain. (Washington Irvin).
Discussion on Imam Hussain in English can also be found here.
Also, more articles about Al-Husain can be read in this blog.
Sembrani 