Indigenous Aryans were inter-related, and the notion of biological race came to the forefront The "Aryan race," the presumed identity of Indo-European language speakers was prominent among such races, which was seen to be further subdivided into "European Aryans" and "Asian Aryans," each with their own homelands. Max Mueller, who translated the Rigveda during 1849–1874, postulated an original homeland for all Aryans in central Asia, from where a northern branch was believed to have migrated to Europe and a southern branch came to India and Iran. The Aryans were fair-complexioned Indo-European speakers who conquered the dark-skinned "dasas" of India. The upper castes,
Simple past a past state: For action that was ongoing at the time referred to, the past progressive is generally used instead (e.g. "I was cooking"). The same can apply to states, if temporary (e.g. "the ball was lying on the sidewalk"), but some stative verbs do not generally use the progressive aspect at all – see – and in these cases the simple past is used even for a temporary state: However, with verbs of sensing, it is common in such circumstances to use "could see" in place of "saw", "could hear" in place of "heard", etc. For more on this,