Early 1800's. The Erie Canal was built in 1817
Explanation:
Well maybe because like cows do, some adventure off by themselves, and with younger cows they may forget where to head back. And if you think about it that leads to older cows which leads to new cow groups in different areas. Just like dinosaurs may have done.. Just a maybe
<span>The Chernobyl Nuclear Disaster (Chernobyl
accident) was one of the worst nuclear power plant accident recorded in history
which happened on April 26, 1986 at the Chernobyl Nuclear Power Plant. The
powerplant was situated in the town Ukraine, Pripyat and under the Soviet
Union. The cause of the accident was of an
explosion releasing huge quantities of radioactive particles into the
atmosphere, spreading over the western USSR and Europe killing 31 workers ,
affecting 500,000 people in trying to contaminate the radiation and much more
long term effects of mutation.</span>
All of the minerals contaminated the waters everywhere in Australia
