Nammalvar (also Nammaazhvaar, Nammazhvar, Nammaalvaar, Nammalwar) was one of the twelve Alvars, well-known for his many hymns on devotion to Vishnu. Tradition gives him the date 3102 B.C. (for example, the beginning of the kali yuga), but scholars give him a date 880–930 A.D which's more realistic based on the events recorded. He was born in the asterism Visakham, in what's now Alvartirunakari (also known as Tirukkurugur), Tamil Nadu. His name means "our own alvar" (alvar means "one immer… (More on Nammalvar)