Andaman and Nicobar's history is probably rooted during the pre-independence period where several prisoners where sent to the much feared Cellular Jail here. Prior to that it was a quaint island inhabited by local tribes.  

The Famous Kala Pani Jail in Andaman Islands 

The British used the islands as a penitentiary (an isolated prison) for members of the Indian independence movement. The mode of imprisonment was called Kala Pani (Black waters).

The Cellular Jail in Port Blair was regarded as the "Siberia" of British India. The islands were administered as a Chief Commissioner's Province. The British continued their occupancy until the Japanese Invasion and Occupation of the Andaman Islands during World War II.

World War 2 - Japanese land on the Islands

World War II brought another series of changes in the life of the Andamans. During the War, the Japanese occupied Andamans and kept the region under their effective control till 1945.

Subhash Chandra Bose and the Japanese surrender

Netaji Subash Chandra Bose arrived in Port Blair on December 29, 1943 and was given a ceremonial welcome. He hoisted the National Flag at Port Blair on 30th Dec. 1943 for the first time during the British regime in India. On October 8, 1945, the Japanese surrendered to the South East Asia Command at Port Blair. The Government quickly restored normalcy in the area and started rehabilitation work.

Post Independence - Andaman and Nicobar becomes a union territory of India

After Independence of both India (1947), Burma (1948), and the departing British announced their intention to resettle all Anglo-Indians and Anglo-Burmese on the islands to form their own nation. This never materialized. Finally, Andaman Nicobar Islands  became an Indian union territory (UT) in 1950.

Bengalis - the major ethnic group

The Bengalis are the major population group which came to the Andamans after Independence. They came as 'settlers' under the Government rehabilitaion scheme, which started as early as 1949 and continued till the 1970s.  Other settlers followed and include among others, Punjabis, Marathis, Malayalis and Tamilians.

Now that you know the history of these islands, why don't you explore the tourist places of Andaman & Nicobar

or

Know about the wildlife and nature in Andaman & Nicobar Islands