What is greatly needed is a new edition of this work including the Asoka inscriptions discovered during the last twenty years, and a similar edition of the other inscriptions.
Asoka recognized proselytism by peaceful means as a state duty.
In 272 B.C. he in turn was succeeded by Asoka, the Buddhist emperor, the religious side of whose reign has already been described.
According to tradition it was invaded by an Aryan-speaking colony from the valley of the Ganges in the 6th century B.C. It received Buddhism from north India in the time of Asoka, and has had considerable importance as a centre of religious culture which has influenced Burma and Siam.
24 a of slight additions made to this Nikaya as late as the time of Asoka, 3rd century B.C. And the developed doctrine, found in certain portions of it, shows that these are later than the four old Nikayas.