It was the most accurate calendar of the time!
No religion group ruled India, but many Indians currently, and in the past, follow Hinduism.
Scientists collect data on the greenhouse effect by calculating carbon dioxide or greenhouse gases emissions around and evaluating the effect of this emissions to the temperature. Hope this answers the question. Have a nice day. Feel free to ask more questions.
Between the 1870s and 1900, Africa faced European imperialist aggression, diplomatic pressures, military invasions, and eventual conquest and colonization. At the same time, African societies put up various forms of resistance against the attempt to colonize their countries and impose foreign domination.