Bahrain, officially the Kingdom of Bahrain, is a borderless island country in the Persian Gulf. Saudi Arabia lies to the west and is connected to Bahrain by the King Fahd Causeway, and Qatar is to the south across the Gulf of Bahrain. The Qatar–Bahrain Friendship Bridge being planned will link Bahrain to Qatar as the longest fixed link in the world.

Bahrain has been inhabited since ancient times and has even been proposed as the site of the Biblical Garden of Eden. Its strategic location in the Persian Gulf, between East and West, has brought rule and influence from the Assyrians, Babylonians, Greeks, Persians, and finally the Arabs, under whom the island became Muslim.


Bahrain fell into British control in 1859, remained a British protectorate until 1971. Oil was discovered in 1932 and brought rapid modernization to Bahrain. Bahrain was the first place to find oil in the whole region.


The Indian post office opened in Bahrain on August 1, 1884, and the Indian postal authority obtained a monopoly of service in Bahrain through a treaty on September 4, 1911.