In response to colonialism and their contact with Western philosophy, 19th-century Indians developed new ways of thinking now termed Neo-Vedanta and Hindu modernism. Their ideas focused on the universality of Indian philosophy (particularly Vedanta) and the unity of different religions. It was during this period that Hindu modernists presented a single idealized and united "Hinduism." exemplified by the philosophy of Advaita Vedanta. They were also influenced by Western ideas. The first of these movements was that of the Brahmo Samaj of Ram Mohan Roy (1772–1833). Swami Vivekananda (1863–1902) was very influential in developing the Hindu reform movements and in bringing the worldview to the West. Through the work of Indians like Vivekananda as well as westerners such as the proponents of the Theosophical society, modern Hindu thought also influenced western culture.