Question

Did Newton remain humble about his achievements and thirsty for more knowledge even in his old age? How do we know? 

Answer 1

Small dams and Inundation Canals were built to sustain water in a stable and controllable way so that it could be controlled ad easily transported/ distributed. The Indus people were fully aware of the principles of health and sanitation. ... The bath had 6 entrances and all contained stairs that led into the water.