 
 <prompt> Wetin be di first period of Indian history, wen you dey look am from di angle of "ruling dynasties and foreign invasions?" Based on di last question, write a context wey contain di answer. E fit be 1 - 20 sentences. Context: <response>: Romila Thapar talk say di division into Hindu-Muslim-British periods of Indian history dey give too much weight to "ruling dynasties and foreign invasions", wey dey neglect di social-economic history wey often show strong continuity. Di division into Ancient-Medieval-Modern periods dey overlook di fact say di Muslim conquests happen gradually during wey time many things come and go, while di south never completely conquer. According to Thapar, periodisation fit also dey based on "significant social and economic changes", wey no strictly relate to change of ruling powers. 