This book offers a deeper historical context to the interplay between the physical fortunes of climate and weather and the ways, in which the Tamil society experienced it in the medieval age. It touches upon the rainfall, famines and droughts, storms and cyclones, earthquakes, floods and tsunamis, temperature and atmospheric pressure of the modern age, noticed by the Catholic and Protestant missionaries, Euro­pean traders, travellers, the East India Company officials and servants using scientific instruments. Based on a greater variety of Tamil sources, missionary letters and reports.