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Era Polonnaruwa. Part II – By Dr Tilak S. Fernando When ancient Ceylonese trade, industries and technology were discussed, the irrigation network was the first thing that came to mind—the old technology and self-determination. During the Polonnaruwa era, irrigation networks were prominent and considered a meritorious deed according to the Sinhala culture and tradition. When a massive lake was to be constructed, Sri Lankans always sought foreigners’ assistance (in the present circumstances), including modern equipment and their knowledge. But our forefathers constructed huge lakes with slopes up to one inch to a mile gradient with their expertise and technology in society. It meant that local industries should have existed. It is also recorded that technology to build bridges existed in the Polonnaruwa era. Our forefathers’ ability and determination make us really proud. Old Ceylonese considered the Lake building and construction of stupas (Dagabas) as a meritorious right according to the ...