It is the name of tenth day of Muharrem which is the first month of lunar calendar. That day is very important in Islam. In the past, many of major events took place on that day. Some are as follows: Prophet Jonah (P.B.U.H) rescued from the abdomen of the big dolphin today. Prophet Joseph (P.B.U.H.) rescued from the dungeon today. Prophet Noah's (P.B.U.H.) ship landed on the coast today. And so on. We pray this day more than others for all the humans to get health, to live peacefully and become happy.