chernobil:
The 26 of April of 1986 the reactor nº 4 of the nuclear power station of Chernóbil, in the Ukraine, suffered a serious accident.
The expelled radioactive elements to atmosphere created contaminated air masses: the radioactive cloud was dragged by the wind, not only affected the zone next to the power station but that traveled thousand of km contaminating great areas of Bielorrusia, the Ukraine, Russia, ample zones of Asia more than 400,000 people were forced to leave their homes.