Historical methods of dating data absolute beginners guide to online dating
Antiquities and potteries of Roman origin were found in association with the finds of Indian origin.
With the aid of these dated imports it was possible to date the associated Indian objects to the first two centuries A. Similarly NBP and PGW has helped in fixing the chronology of numerous sites. Sometimes dates are also obtained with the assistance of astronomy.
Whenever and where ever such antiquities are found, associated finds are automatically dated.
For example Mauryan terracottas, Roman amphorae, Harappan pottery, NBP , PGW,etc.
Even when the absolute dates are available, we have to supplement the information with relative dating.
The various methods of relative dating are; This method depends on the common observation that the height of the habitational area increases as the people continue to live at the same place.
Astronomical data have been applied in the study of geological ice ages by calculating the curves for major fluctuation of solar radiation.
Consequently, the chronology worked out for the geological deposits helped in dating the prehistoric tools found in these deposits. There are certain antiquities and potteries which by themselves have acquired a dating value.
In the disintegration process the Carbon-14 returns to nitrogen emitting a beta particle in the process.In such cases subjective element cannot be ruled out.But, for a single culture site the method is quite reliable.The deposit thus occurring forms layers depending on the nature of the material brought in by the people inhabiting the area.According to this method, the upper deposits are younger and the lower deposits are older.