Conversation so far:
Why did Swami Vivekananda go back to India?
travelled from Colombo to Pamban, Rameswaram, Ramnad, Madurai, Kumbakonam and Madras, delivering lectures.
What is the notable lecture?
repeatedly addressed social issues: uplifting the people, eliminating the caste system, promoting science and industrialisation, addressing widespread poverty and ending colonial rule.
These.
Does he do something specific to help poverty in India?
rule.
These lectures, published as Lectures from Colombo to Almora, demonstrate his nationalistic fervour and spiritual ideology.
Please tell me something else?
Vivekananda earlier inspired Jamshedji Tata to set up a research and educational institution when they travelled together from Yokohama to Chicago on Vivekananda's.
What is the name of the institution in Chicgao?
Research Institute of Science; Vivekananda.
Is there a notable thing done by Research Institute of Science?
the math and trained disciples for several months.
What do disciples do?
eliminating the caste system.

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