This article is part of a Nature series examining data on ethnic or racial diversity in science in different countries. See also: How UK science is failing Black researchers — in nine stark charts.

FILE - Members of the audience listen to a speaker at a rally organized by National Conference of Dalit Organisations in New Delhi, India, Sunday, Dec. 5, 2005. Dalits, who belong to the lowest of ...

Discrimination against individuals based on caste would seem to be a relic of the past. Even in India, where the caste system was most rigid, the practice has been officially banned since 1950.

For millions across India, a rigid caste system thousands of years old still dictates much of daily life – from social circles to dating pools to job opportunities and schooling. The Indian government ...

Caste is an ancient system of social hierarchy based on one’s birth that is tied to concepts of purity and social status. Its history, evolution and current state are complicated. A move to outlaw ...

Many of the patterns described in this report vary by caste. In India, castes are hereditary social classes. Historically, the caste someone was born into determined their status in the social ...

(CNN) — For millions across India, a rigid caste system thousands of years old still dictates much of daily life – from social circles to dating pools to job opportunities and schooling. CNN — (CNN) — ...