In 1979 at Three Mile Island nuclear power plant in USA a cooling malfunction caused part of the core to melt in the # 2 reactor. The TMI-2 reactor was destroyed.  Some radioactive gas was released a couple of days after the accident, but not enough to cause any dose above background levels to local residents.  There were no injuries or adverse health effects from the Three Mile Island accident.  The Three Mile Island power station is near Harrisburg, Pennsylvania in USA.

The Manhattan Project was the code name for the U.S. effort during World War II to produce the atomic bomb. The program was under the leadership of Gen. Leslie Groves, and theoretical physicist J. Robert Oppenheimer. The main laboratory was built on an isolated mesa at Los Alamos, New Mexico. The first atomic bomb was tested at Alamogordo, New Mexico, on July 16, 1945.

The atomic age has moved forward at such a pace that every citizen of the world should have some comprehension, at least in comparative terms, of the extent of this development, of the utmost significance to every one of us.Clearly, if the peoples of the world are to conduct an intelligent search for peace, they must be armed with the significant facts of today's existence.

Dwight D. Eisenhower Atoms for Peace Speech

Animated classic presenting what an atom is, how energy is released from certain kinds of atoms, the peacetime uses of atomic energy and the byproducts of nuclear fission.

By the late 1950s, officials of the Eisenhower administration, after having seen the results of numerous atomic bomb tests, had a fairly realistic idea of how difficult it would be to survive a nuclear bomb blast. They continued, however, to disseminate somewhat dubious survival information, primarily to give the American public a sense of hope and control over their own lives. They also believed that a public confident of surviving an atomic war would support the federal government's decision to increase its own atomic arsenal, even though its existence could provoke a nuclear war with the Soviet Union.

America's post-World War II period is often portrayed as a time of affluence and contentment, but fear of atomic war and Communist infiltration also marked the era and affected the decisions Americans made about their lives and futures. Fear of atomic bomb attacks on the nation's cities helped motivate people to move to the relative safety of the suburbs. Some Americans built fallout shelters to protect their families while others, shocked by the prospect of nuclear annihilation at any moment, sought to live for the present.

Once the first atomic bomb was dropped on Japan, Americans realized a new era in history, one defined by the ability of humans to destroy their world.

Positive portrayals of atomic bomb blasts, along with toys and games that made light of atomic bomb destruction like those in the case below, may have helped diffuse some of the fear the American public felt about the bomb by desensitizing them to the devastation an atomic bomb could cause.

Today, the world is attempting to control nuclear proliferation through diplomacy and treaties. In 1996, the Comprehensive Test Ban Treaty prohibited nations from using bombs for either military or research purposes. Forty-one states with nuclear capabilities have signed the treaty, but it cannot take effect until three more nations join. India, Pakistan, and North Korea are among the countries that have refused. Although the United States has signed the treaty, it has not ratified it yet.

The following Nuclear Age Timeline was created by the Nuclear Age Peace Foundation to preserve memory, and to awaken and educate new generations about the profound dangers and extreme risks posed by nuclear weapons.

scientists unraveled the structure of the atom, revealing the electron and proton. 

in 1938 fission of uranium atoms by neutrons was carried out in Germany. The energy associated with fission opened the possibility for powerful weapons and also the production of energy for civilian use.

The United Nations attempted to develop a policy for control of nuclear weapons, but the United States and the Soviet Union could not agree. This was but one component of the emerging Cold War between the two nations. Citizens of all nations saw the power of nuclear fission as massive threat as well as a source of useful energy for mankind.

By 1925, Bryan and his followers had succeeded in getting legislation introduced in fifteen states to ban the teaching of evolution. In February, Tennessee enacted a bill introduced by John Butler making it unlawful "to teach any theory that denies the story of divine creation as taught by the Bible and to teach instead that man was descended from a lower order of animals."  

    Opening statements pictured the trial as a titanic struggle between good and evil or truth and ignorance. Bryan claimed that "if evolution wins, Christianity goes." Darrow argued, "Scopes isn't on trial; civilization is on trial." The prosecution, Darrow contended, was "opening the doors for a reign of bigotry equal to anything in the Middle Ages." To the gasps of spectators, Darrow said Bryan was responsible for the "foolish, mischievous and wicked act." Darrow said that the anti-evolution law made the Bible "the yardstick to measure every man's intellect, to measure every man's intelligence, to measure every man's learning." It was classic Darrow, and the press--mostly sympathetic to the defense--loved it.

    On the seventh day of trial, Raulston asked the defense if it had any more evidence. What followed was what the New York Times described as "the most amazing court scene on Anglo-Saxon history." Hays asked that William Jennings Bryan be called to the stand as an expert on the Bible. Bryan assented, stipulating only that he should have a chance to interrogate the defense lawyers. Bryan, dismissing the concerns of his prosecution colleagues, took a seat on the witness stand, and began fanning himself.     Darrow began his interrogation of Bryan with a quiet question: "You have given considerable study to the Bible, haven't you, Mr. Bryan?" Bryan replied, "Yes, I have. I have studied the Bible for about fifty years." Thus began a series of questions designed to undermine a literalist interpretation of the Bible. Bryan was asked about a whale swallowing Jonah, Joshua making the sun stand still, Noah and the great flood, the temptation of Adam in the garden of Eden, and the creation according to Genesis. After initially contending that "everything in the Bible should be accepted as it is given there," Bryan finally conceded that the words of the Bible should not always be taken literally. In response to Darrow's relentless questions as to whether the six days of creation, as described in Genesis, were twenty-four hour days, Bryan said "My impression is that they were periods."     Bryan, who began his testimony calmly, stumbled badly under Darrow's persistent prodding. At one point the exasperated Bryan said, "I do not think about things I don't think about." Darrow asked, "Do you think about the things you do think about?" Bryan responded, to the derisive laughter of spectators, "Well, sometimes." Both old warriors grew testy as the examination continued. Bryan accused Darrow of attempting to "slur at the Bible." He said that he would continue to answer Darrow's impertinent questions because "I want the world to know that this man, who does not believe in God, is trying to use a court in Tennessee--." Darrow interrupted his witness by saying, "I object to your statement" and to "your fool ideas that no intelligent Christian on earth believes." After that outburst, Raulston ordered the court adjourned. The next day, Raulston ruled that Bryan could not return to the stand and that his testimony the previous day should be stricken from evidence.