Answers

2014-06-02T21:14:54+05:30
They liked keeping handwritten records.
which is nw helpful for retriving history
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Its the Best Answer
thnx
always welcome
:-)
2014-06-02T22:37:58+05:30
I agree They conducted all kinds of surveys and recorded each and every event carefully, which is now helpful in writing the histoty.
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If it is helpful thn mark it as the best