In an authoritative 1899 book, MV Portman, a British officer, describes both fascination and frustration with the island tribes
Long before Andaman and Nicobar Islands became part of independent India, the British too were at a loss on how to deal with the indigenous inhabitants of this remote archipelago. The aboriginal tribes there that included Jarawas and Sentinelese – the latter recently made headlines for the alleged murder of American missionary John Allen Chau -- preferred magnificent isolation to human contact.
John Allen Chau had gone to the island as a missionary to "establish the Kingdom of Jesus," his diaries reveal