The Number 191
191 is a Centered 19-gonal Number.
Mandala 1 of the Rig-Veda is comprised of 191 hymns. Hymn 1.1 is addressed to Agni, and his name is the first word of the Rigveda.
Mandala 10 of the Rg-Veda is comprised of 191 hymns, to Agni and other gods.
The Year 191 ADIn the year 191 AD King Arnuwanda VI of Hatti died. He was succeeded by Hantili IV.