ely low. Bengal has always been at the mercy of invaders. The
earliest inroad was prompted by economic necessity. About 2000 B.C. a
congeries of races which are now styled "Aryan" were driven by the
shrinkage of water from their pasture-grounds in Central Asia. They
penetrated Europe in successive hordes, who were ancestors of our
Celts, Hellenes, Slavs, Teutons and Scandinavians. Sanskrit was the
Aryans' mother-tongue, and it forms the basis of nearly every European
language. A later swarm turned the western flank of the Himalayas,
and descended on Upper India. Their rigid discipline, resulting from
vigorous group-selection, gave the invaders an easy victory over the
negroid hunters and fishermen who peopled India. All races of Aryan
descent exhibit the same characteristics. They split into endogamous
castes, each of which pursues its own interests at the expense of
other castes. From the dawn of history we find kings, nobles and
priests riding roughshod over a mass of herdsmen, cultivators and
artisans. These ruling castes are imbued with pride of colour. The
Aryans' fair complexions differentiated them from the coal-black
aborigines; varna in Sanskrit means "caste" and "colour". Their
aesthetic instinct finds expression in a passionate love of poetry,
and a tangible object in the tribal chiefs. Loyalty is a religion
which is almost proof against its idol's selfishness and incompetence.

Caste is a symptom of arrested social development; and no community
which tolerates it is free from the scourge of civil strife. Class
war is the most salient fact in history. Warriors, termed Kshatriyas
in Sanskrit, were the earliest caste. Under the law of specialisation
defence fell to the lot of adventurous spirits, whose warlike prowess
gave them unlimited prestige with the peaceful masses. They became
the governing element, and were able to transmit their privileges by
male filiation. But they had to reckon with the priests, descended
from bards who attached themselves to the court of a Kshatriya
prince and laid him under the spell of poetry. Lust of dominion is a
manifestation of the Wish to Live; the priests used their tremendous
power for selfish ends. They imitated the warriors in forming a
caste, which claimed descent from Brahma, the Creator's head, while
Kshatriyas represented his arms, and the productive classes his less
noble members.

In the eleventh century B.C. the warrior clans rose in revolt against
priestly arro