The fourth Mandala of the Rigveda has 58 hymns, mainly to Agni and Indra. It is one of the "family books" (mandalas 2âÂÂ7), the oldest core of the Rigveda, which were composed in early vedic period(1500-1000 BCE).
The Rigveda Anukramani attributes all hymns in this book to VÃÂmadeva Gautama (son of Maharishi Gautama), except for hymns 43 and 44, attributed to ' and '.
The dedication as given by Griffith is in square brackets