QWho established the Ramakrishna Mission in Kolkata in 1896 for social work?

Ramakrishna mission (RKM) is a Hindu religious and spiritual organisation which forms the core of a worldwide spiritual movement known as the Ramakrishna Movement or the Vedanta Movement.[1][2] The mission is named after and inspired by the Indian saint Ramakrishna Paramahamsa[1] and founded by Ramakrishna's chief disciple Swami Vivekananda on 1 May 1897.[1] The organisation mainly propagates the Hindu philosophy of Vedanta–Advaita Vedanta and four yogic ideals–jnana, bhakti, karma, and Raja Yoga.[3][1] Apart from religious and spiritual teaching the organisation carries out extensive educational and philanthropic work in India. This aspect came to be a feature of many other Hindu movements.[4] The mission bases its work on the principles of karma yoga, the principle of selfless work done with dedication to God.[1] The Ramakrishna Mission has centres around the world and publishes many important Hindu texts.[5] It is affiliated with the monastic organisation.Vivekananda was greatly influenced by his guru(teacher) Ramakrishna.