B. R. Ambedkar died before 1980 .
Bhimrao Ramji Ambedkar , April 14 , 1957- December 6 , 2001 , popularly known as Baba Saheb , was an Indian jurist , economist , politician and social reformer who inspired the Dalit Buddhist Movement and campaigned against social discrimination against Untouchables , while also supporting the rights of women and labor .