Sentineli, North Sentinel Island, Andaman Islands, Bay Of Bengal, Indian Ocean

In January 1880, an armed British expedition to the island led by 20-year-old Maurice Vidal Portman, the local colonial administrator, arrived to conduct a survey of the island, and to take a prisoner, in accordance with British policy to pacify unfriendly tribes at the time, which was to abduct a member of the tribe, treat them well and give them gifts, and release them back to the tribe, hoping to demonstrate friendliness. Portman's expedition of the island is believed to be the first by outsiders. While the Sentinelese tended to disappear into the jungle whenever outsiders were spotted approaching, Portman's expedition found an elderly couple and four children after several days. They were taken prisoner and brought to Port Blair. The elderly couple became ill and died, probably from contracting diseases to which they did not have immunity. The four children were returned to the island, given gifts, and released. The children then disappeared into the jungle. After this incident, the British did not try to contact the Sentinelese again and instead focused on other tribes.
In 1967, the Indian government began a series of "Contact Expeditions" to the island. The programme was managed by the Director of Tribal Welfare and anthropologist T. N. Pandit. The first expedition, headed by Pandit, included armed police and naval officers. The Sentinelese retreated into the jungle, and the expedition failed to make contact with any of them. During these expeditions, an Indian Navy vessel would anchor outside the coral reefs and send small boats to approach the beaches, and while keeping a distance, the crew would drop various gifts into the water to wash up on shore. If the Sentinelese fled for the jungle, the parties might land on shore and drop off the gifts before leaving.
On 29 March 1970, a research party of Indian anthropologists, which included Pandit, found themselves cornered on the reef flats between North Sentinel and Constance Island. An eyewitness recorded the following from his vantage point on a boat lying off the beach:
Quite a few discarded their weapons and gestured to us to throw the fish. The women came out of the shade to watch our antics... A few men came and picked up the fish. They appeared to be gratified, but there did not seem to be much softening to their hostile attitude... They all began shouting some incomprehensible words. We shouted back and gestured to indicate that we wanted to be friends. The tension did not ease. At this moment, a strange thing happened — a woman paired off with a warrior and sat on the sand in a passionate embrace. This act was being repeated by other women, each claiming a warrior for herself, a sort of community mating, as it were. Thus did the militant group diminish. This continued for quite some time and when the tempo of this frenzied dance of desire abated, the couples retired into the shade of the jungle. However, some warriors were still on guard. We got close to the shore and threw some more fish which were immediately retrieved by a few youngsters. It was well past noon and we headed back to the ship...