Maharshi Swami Dayanand Saraswati ji established Arya Samaj on April 7, 1875 in Mumbai, India
What did he mean by Arya? Not a race, not member of a caste or class, but a person, any person, of highest nature (shreshtha), character and conduct, religiously pious, dedicated to Dharma, seriously motivated and dedicated positively, a pursuant of truth and knowledge, honest in thought, word and deed. People of this nature, character and conduct are, in Vedic terms, inheritors of the earth because they sustain the life and environment on earth.
The meaning of the word Samaj is "a united, integrated, harmonious, living and vibrant community, it self moving and moving and advancing all others to a life of peace and comprehensive all round progress, physically, mentally, culturally and spiritually, for the individual and society as a whole."
Arya Samaj has played a leading role in all social and educational reforms like
Arya Samaj was actively involved in struggle for independance
Establishment of Gurukul Kangdi at Haridwar
Mahrishi Dayanand Saraswati Universities at Ajmer & Rohtak
DAV schools & colleges all over India
Gurukuls for Vedic research scholars
Orphanages, more that 150 being run all over the country
Promotion of widow remarriage
Eradication of untaouchability
Old Age Homes (Van Prastha Ashram)
Movement against Superstitions
Movement against Blind-beliefs