When God created the heavens and the earth, he also included water! :)
For more information, consult the Holy Bible.
AnswerWater molecules would have been in the material from which the earth was formed but would have escaped in the earliest stages. As the primordial earth cooled conditions developed that allowed the atmosphere to stabilize and create enough pressure to retain water. You can read more about it at the related links.
Cities were built near sources of water.
10,000 years ago!
The Tremont built in Boston in 1829.
Henry Cabot Lowell
The first septic systems were built in the 1900s. They were created in order to minimize sicknesses brought upon by cesspools and bacteria- and sewage-infested water.
They ran on water power
Most factories were built near water to power the machines.
they were built in the last century and they were used to filter water for romeThe Roman aqueducts were water conduits which took water form the mountains to the cities. Most of them were underground pipes. Some of them were on top of bridgework. This was done when there was a need to cross a valley or it was needed to keep the conduit at a gradient, as the Romans relied on gravity to make the water move.Roman aqueducts were built whenever they were needed. The first aqueduct was built in 312 BC and it was called the Aqua Appia. Others followed whenever and wherever they were needed.The Roman aqueducts were built over a period of 500 years, with the first being built in 321 BCE. This was the Aqua Appia, which carried water to the City of Rome from a source about 16.4 km away.
The first mill was built near the head of Stony brook, near today's Jackson Square in the colonial era - 1600s.
Henry Cabot Lowell
used water to power machines
There are two reason why houses in the Amazon are built on stilts. The first is to keep water from flooding the huts and the second is to keep vermin out.