Caste is a form of social stratification characterized by endogamy, hereditary transmission of a style of life which often includes an occupation, ritual status in a hierarchy, and customary social interaction and exclusion based on cultural notions of purity and pollution. Its paradigmatic ethnographic example is the division of India's Hindu society into rigid social groups, with roots in India's ancient history and persisting to the present time. However, the economic significance of the caste system in India has been declining as a result of urbanization and affirmative action programs. A subject of much scholarship by sociologists and anthropologists, the Hindu caste system is sometimes used as an analogical basis for the study of caste-like social divisions existing outside Hinduism and India. The term 'caste' is also applied to morphological groupings in female populations of ants and bees. The English word 'caste' derives from the Spanish and Portuguese casta, which, according to the John Minsheu's Spanish dictionary (1569), means 'race, lineage, tribe or breed'. When the Spanish colonized the New World, they used the word to mean a 'clan or lineage'. It was, however, the Portuguese who first employed casta in the primary modern sense of the English word 'caste' when they applied it to the thousands of endogamous, hereditary Indian social groups they encountered upon their arrival in India in 1498. The use of the spelling 'caste', with this latter meaning, is first attested in English in 1613. Modern India's caste system is based on the artificial superimposition of a four-fold theoretical classification called the Varna on the natural social groupings called the Jāti. From 1901 onwards, for the purposes of the Decennial Census, the British classified all Jātis into one or the other of the Varna categories as described in ancient texts. Herbert Hope Risley, the Census Commissioner, noted that 'The principle suggested as a basis was that of classification by social precedence as recognized by native public opinion at the present day, and manifesting itself in the facts that particular castes are supposed to be the modern representatives of one or other of the castes of the theoretical Indian system.' The system of Varnas propounded in ancient Hindu texts envisages the society divided into four classes: Brahmins (scholars and yajna priests), Kshatriyas (rulers and warriors), Vaishyas (farmers, merchants and artisans) and Shudras (workmen/service providers). The texts do not mention any separate, untouchable category in Varna classification. Scholars believe that the Varnas system was never truly operational in society and there is no evidence of it ever being a reality in Indian history. The practical division of the society had always been in terms of Jātis (birth groups), which are not based on any specific principle, but could vary from ethnic origins to occupations to geographic areas. The Jātis have been endogamous groups without any fixed hierarchy but subject to vague notions of rank articulated over time based on lifestyle and social, political or economic status. Many of India's major empires and dynasties like the Mauryas, Shalivahanas, Chalukyas, Kakatiyas among many others, were founded by people who would have been classified as Shudras, under the Varnas system. It is well established that by the 9th century, kings from all the four castes, including Brahmins and Vaishyas, had occupied the highest seat in the monarchical system in Hindu India, contrary to the Varna theory. In many instances, as in Bengal, historically the kings and rulers had been called upon, when required, to mediate on the ranks of Jātis, which might number in thousands all over the subcontinent and vary by region. In practice, the jātis may or may not fit into the Varna classes and many prominent Jatis, for example the Jats and Yadavs, straddled two Varnas i.e. Kshatriyas and Vaishyas, and the Varna status of Jātis itself was subject to articulation over time. Starting with the British colonial Census of 1901 led by Herbert Hope Risley, all the jātis were grouped under the theoretical varnas categories. According to political scientist Lloyd Rudolph, Risley believed that varna, however ancient, could be applied to all the modern castes found in India, and ' meant to identify and place several hundred million Indians within it.' In an effort to arrange various castes in order of precedence functional grouping was based less on the occupation that prevailed in each case in the present day than on that which was traditional with it, or which gave rise to its differentiation from the rest of the community. 'This action virtually removed Indians from the progress of history and condemned them to an unchanging position and place in time. In one sense, it is rather ironic that the British, who continually accused the Indian people of having a static society, should then impose a construct that denied progress' The terms varna (conceptual classification based on occupation) and jāti (groups) are two distinct concepts: while varna is the idealised four-part division envisaged by the Twice-Borns, jāti (community) refers to the thousands of actual endogamous groups prevalent across the subcontinent. The classical authors scarcely speak of anything other than the varnas, as it provided a convenient shorthand; but a problem arises when even Indologists sometimes confuse the two. Thus, starting with the 1901 Census, Caste officially became India's essential institution, with an imprimatur from the British administrators, augmenting a discourse that had already dominated Indology. “Despite India's acquisition of formal political independence, it has still not regained the power to know its own past and present apart from that discourse”. Upon independence from Britain, the Indian Constitution listed 1,108 castes across the country as Scheduled Castes in 1950, for positive discrimination. The Untouchable communities are sometimes called Scheduled Castes, Dalit or Harijan in contemporary literature. In 2001, Dalits were 16.2% of India's population. Most of the 15 million bonded child workers are from the lowest castes. Independent India has witnessed caste-related violence. In 2005, government recorded approximately 110,000 cases of reported violent acts, including rape and murder, against Dalits. For 2012, the government recorded 651 murders, 3,855 injuries, 1,576 rapes, 490 kidnappings, and 214 cases of arson. The socio-economic limitations of the caste system are reduced due to urbanization and affirmative action. Nevertheless, the caste system still exists in endogamy and patrimony, and thrives in the politics of democracy, where caste provides ready made constituencies to politicians. The globalization and economic opportunities from foreign businesses has influenced the growth of India's middle-class population. Some members of the Chhattisgarh Potter Caste Community (CPCC) are middle-class urban professionals and no longer potters unlike the remaining majority of traditional rural potter members. The co-existence of the middle-class and traditional members in the CPCC has created intersectionality between caste and class. There is persistence of caste in Indian politics. Caste associations have evolved into caste-based political parties. Political parties and the state perceive caste as an important factor for mobilization of people and policy development. Studies by Bhatt and Beteille have shown changes in status, openness, mobility in the social aspects of Indian society. As a result of the modern social pressures on the country, India is experiencing a change in their social sphere dynamic as well as economically in the caste system. While arranged marriages are still the most common practice in India, the internet has provided a network for younger Indians to take control of their relationships through the use of dating apps. This remains isolated to informal terms, as marriage is not often achieved through the use of these apps. Hypergamy is still a common practice in India and Hindu culture. Men are expected to marry within their caste, or one below, with no social repercussions. If a woman marries into a higher caste, then her children will take the status of their father. If she marries down, her family is reduced to the social status of their son in law. In this case, the women are bearers of the egalitarian principle of the marriage. There would be no benefit in marrying a higher caste if the terms of the marriage did not imply equality. However, men are systematically shielded from the negative implications of the agreement.