History of Technology in India, Vol. I: From Antiquity to c. 1200 A.D. v1.c13.6

v1.c13.6

The fifth step in this process is - obsolescence, when any innovation is rejected or surpassed in favour of another superior one, and this is the stage when a metallic object is generally found at the excavation sites except in the case of natural calamities. Thus we see that the discovery of any metallic or non-metallic object or artifact at any excavation site does not take into account the time gap comprising of the first three steps of any innovation and this may lead to inaccuracy in the determination of the exact age of metallic object and the era to which it actually