Conversation so far:
Why did Swami Vivekananda go back to India?
What is a notable lecture of Swami Vivekananda?
In India, Vivekananda repeatedly addressed social issues: uplifting the people, eliminating the caste system, promoting science and industrialisation, addressing widespread poverty and ending colonial rule.
Does Swami Vivekananda do something specific to help poverty in India?
Vivekananda drew attention to the extent of poverty in the country, and maintained that addressing such poverty was a prerequisite for national awakening.
What was the name of the insitution Swami Vivekananda visited in Chicago?
Art Institute of Chicago
Is there a notable thing done by Swami Vuvekananda for the Research Institute of Science?
What do Swami Vivekananda's disciples do?
Narendra and other disciples used to spend many hours in practising meditation and religious austerities every day.

Question: When did he leave India a second time
Self-contained rewrite: When did Swami Vivekananda leave India a second time?