The story
The Islamic era begins from the Hijra, the Prophet Muḥammad's migration from Mecca to Medina in 622 CE, chosen by the caliph ʿUmar as year one seventeen years later. The year is twelve lunar months and takes no account of the seasons, so it runs about eleven days short of the solar year.
Muḥarram is one of the four sacred months and its name means forbidden, since fighting was prohibited in it. Its tenth day, ʿĀshūrāʾ, is the day Ḥusayn, the Prophet's grandson, was killed with his family at Karbalā in 680 CE, and for Shīʿa Muslims the whole month is a time of mourning; for Sunnis the tenth is a recommended day of fasting, the day Mūsā (Moses) was delivered from Pharaoh.
The new year itself is quiet: there is no festival, only the change of date. In India Muḥarram means the processions of the tenth, with the taʿziya (models of Ḥusayn's tomb) carried through the streets of Lucknow and Hyderabad.
