Atomic Discovery

Atomic Discovery
From Leucippus in 500 BC postulating the theory of atoms and void, to Einstein's theory of relativity.
1930s
In the 1930s, key discoveries are made about the fissioning of atomsby Enrico Fermi, Otto Hahn, Fritz Strassmann and Lise Meitner. These discoveries lay the groundwork for the development of nuclear weapons in the next decade.
1940s
The United States' ManhattanProject builds and tests the first atomic bombs. The new weapons are used on Hiroshima, then Nagasaki leading to the end of World War II. The beginning of the Cold War follows with the USSR's detonationof an atomic bomb in 1949.
1950s
The Korean War opens this decade, which also sees the first space travel by human beings, the construction of bomb shelters, and the deployment of the firstIntercontinental Ballistic Missiles by the United States in 1958.
1960s
France and China join the "Nuclear Club." The Cuban Missile Crisis brings the world to the brink of a nuclear war and back. In 1968,the unpopular war in Vietnam and social demonstrations rising across the world, present the backdrop for the Non-Proliferation Treaty, in which the nuclear powers promise to bring about completenuclear disarmament.
1970s
The SALT I and Anti Ballistic Missile (ABM) Treaties open this decade on a positive note. The end of the Vietnam War is followed by the SALT II agreement. The tragic accident atthe Three Mile Island nuclear energy plant occurs at the end of the decade.
1980s
The Cold War is at its height with Ronald Reagan declaring the USSR "the Evil Empire." Reagan's Administrationengineers a massive build-up of nuclear arms. In 1985, it is revealed that Israel may have up to 200 nuclear weapons stockpiled. By the end of the decade, the Cold War ends when Glasnost exploded into amostly peaceful revolution across the former-Soviet block.
1990s
The promise of nuclear disarmament after the Cold War got a boost when Ukraine, Kazahkstan, and Belarus chose to give up their...