In Arabic language the meaning of Ashura is "the tenth day".Ashura is the most tragic days in the islamic history.Muharram is the first month of lunar calender and Ashura is the tenth of Muharram.Ashura marks the martyrdom of Imam Hussain with his 72 companions in Karbala.
why this tragedy happend?
After death of Yazid's father,He was determind to silence those who questioned his legitamacy as new calif.
Imam Hussain refused to pay allegiance to Yazid due to many reasons.He remained in his beliefes and said death with dignity is better than life with humiliation.
In Ashura, mosques as well as people serve free meal for lunch which is called Nazri.Dont hesitate to ask for Nazri and try it!