The Indian National Congress, abbr. INC, also commonly called the Congress is one of the two major contemporary political parties in India, the other being the Bharatiya Janata Party. It is one of the largest and oldest democratically-operating political parties in the world. Founded by freedom fighter activists in 1885, it dominated politics nationally for most of the period from 1947–89. There have been seven Congress Prime Ministers, the first being Jawaharlal Nehru, serving from 1947–64 and the most recent being Manmohan Singh, serving from 2004-14. The party's social liberal platform is largely considered to be on the centre-left of the Indian political spectrum. The INC was primarily founded by a prominent member of the Theosophical Society, Allan Octavian Hume in 1885, along with Dadabhai Naoroji and Dinshaw Wacha. In the following decades, the Indian National Congress became a pivotal participant in the Indian Independence Movement, with over 15 million members and over 70 million participants in its struggle against British colonial rule in India.