After the death of Muawiyah bin Abi Sufyan, Yazid ibn Mu'awiya sent a letter to the governor of Medina to take an allegiance from Husain ibn Ali and others. But Husain bin Ali did not swear allegiance to Yazid, and nightly moved with his family to Mecca.  When Imam Husain (AS) stayed in Mecca, many people of Kufa invited him to guide and lead them. Despite the opposition of some people such as Muhammad ibn Abi Bakr and others, Imam Husain (AS) accepted the invitation of the people and moved toward Kufa. Unfortunately, before Imam Husain (AS) arrived to Kufa, he heard that his representative, Muslim bin Aqeel, was martyred by Ibn Ziad, so he did not continue going to Kufa rather he moved towards Karbala. Imam (AS), his children such as Ali Akbar and Ali Asghar as well as his seventy-two of the best companions were martyred in Karbala.
Imam Hussein (peace be upon him) did not give allegiance to Yazid.
This is the generic message that most of us have been taught as kids, whether at Sunday school, at our own homes, or even at those Muharram classes for kids during the first 10 nights. Then we go on to learn, "Every day is Ashura, and every land is Karbala."
Really? How can that be? But Imam Hussein is not being martyred every day. Lady Zeinab and Lady Sakina (peace be upon them) are not being beaten and deprived of their Hijabs every day. Yazid is not usurping the rights of Islam every day. Or is he?
When it comes to Islam, be it historical events or the thought-provoking laws of jurisprudence, there is more to understand and learn than what the eye sees or what the ear hears.
When Imam Hussein called out Hal min nasirin yansurna ("Is there anyone to help us?") he was quite aware that his family members were no more. As we all should know by now, this call was being made to us.
And we all should also know by now, Islam is a religion for all times and all ages, until the end of time. So what is the wisdom behind our dear Imam Jafar Sadiq (peace be upon him) saying, "Every day is Ashura, and every land is Karbala"?
We call on humanity to carry the love of Imam Hussain (AS) and sprinkle it on the world. It is only with love that we can establish a world that enjoys peace, tranquility and justice.
On the tenth day of the lunar month of Muharram, in the year 61 A.H., Imam Hussain (AS) made an unprecedented sacrifice. He sacrificed his life, the life of his family members, and the life of his companions to repel injustice.