The history of splitting atom and receiving energy from it dates from 19th-century.
The first use of energy was an atomic bomb dropped on Japanese city Hiroshima during the ww2. The so-called A-Bomb is one of weapons of mass destruction.
After the war some countries begun to develop their nuclear arsenals. Also, the more peaceful methods of use the energy were introduced allowing to create nuclear power plants. However, after some disasters, of which Chernobyl Power Plant was most spectacular in 1986, there is some controversy about safety of this energy source.
The nuclear powers in the world (ie. states having nuclear weapons) are:
- United States of America
- Russia (former USSR)
- United Kingdom
- Israel (disputed)
- North Korea
It is believed, that the fact that both sides of the Cold War had nuclear weapons, prevented the war between them, thus keeping so-called nuclear peace.
Questions regarding both history of splitting atom nucleus, people who worked on it, in both peace and military ways, should be tagged with nuclear. Also use of nuclear weapons, like atomic, thermonuclear weapons can be asked within this tag. You might then want to add weapons tag.
Consider adding medicine tag for the use of radiation in history of curing cancer.