an Entity references as follows:
Vishvamitra (Sanskrit: विश्वामित्र, IAST: Viśvā-mitra) is one of the most venerated rishis or sages of ancient India. According to Hindu tradition, he is stated to have written most of the Mandala 3 of the Rigveda, including the Gayatri Mantra. The Puranas mention that only 24 rishis since antiquity have understood the whole meaning of —and thus wielded the whole power of — the Gayatri Mantra. Vishvamitra is supposed to have been the first, and Yajnavalkya the last.