Water is a vital element in the sustenance of human
life. We can survive without water to drink for four
days at most. In ancient civilisations, dwellings would
only be built around, or near, a reliable fresh water
supply. In Jerusalem, it was the Gihon Spring in the
Kidron Valley which enabled King David to make the
city his capital. If there was no spring, then an
underwater supply would need to be found and if
successful, then a well could be built over it to enable
water to be collected and carried.
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