Atharvan and Angiras

Matarishvan brought the fire to earth, gave it to sage Bhrigu and taught him how to lighten the sacrificial fire with the Arani sticks by friction (Arani Manthan).

Bhrigu gave the knowledgte to Angiras and Atharvan, who worshiped fire as the manifestation of the highest.

Angiras and Atharvan are considered to be the composers of the Atharva Veda.