On This Day
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The USSR performs a nuclear test at the Semipalatinsk Test Site in northeastern Kazakhstan

A nuclear and radiation accident is defined by the International Atomic Energy Agency (IAEA) as "an event that has led to significant consequences to people, the environment or the facility."...

A nuclear and radiation accident is defined by the International Atomic Energy Agency (IAEA) as "an event that has led to significant consequences to people, the environment or the facility." Examples include lethal effects to individuals, large radioactivity release to the environment, or a reactor core melt. The prime example of a "major nuclear accident" is one in which a reactor core is damaged and significant amounts of radioactive isotopes are released, such as in the Chernobyl disaster in 1986 and Fukushima nuclear accident in 2011.

The impact of nuclear accidents has been a topic of debate since the first nuclear reactors were constructed in 1954 and has been a key factor in public concern about nuclear facilities.

Historical Significance

A nuclear and radiation accident is defined by the International Atomic Energy Agency (IAEA) as "an event that has led to significant consequences to people, the environment or the facility.

Events Before

  1. François Pienaar is born

    François Pienaar is born

  2. AFL Championship, War Memorial Stadium, Buffalo: Kansas City Chiefs beat Buffalo Bills, 31-7; QB Len Dawson passes for 2

    AFL Championship, War Memorial Stadium, Buffalo: Kansas City Chiefs beat Buffalo Bills, 31-7; QB Len Dawson passes for 2 TDs, RB Mike Garrett runs for 2 TDs

  3. Actor Lee Marvin (42) divorces Elizabeth Ebeling after 14 years of marriage

    Actor Lee Marvin (42) divorces Elizabeth Ebeling after 14 years of marriage

  4. Republican Edward W. Brooke of Massachusetts takes his seat as the first African American popularly elected to the US Se

    Republican Edward W. Brooke of Massachusetts takes his seat as the first African American popularly elected to the US Senate

  5. Canadian actor Christopher Plummer (37) divorces second wife, British columnist Patricia Lewis after nearly 5 years of m

    Canadian actor Christopher Plummer (37) divorces second wife, British columnist Patricia Lewis after nearly 5 years of marriage

Events After

  1. Apollo 11 Moon Landing

    NASA's Apollo 11 mission successfully lands the first humans on the Moon. Neil Armstrong and Buzz Aldrin become the first people to walk on the lunar surface.

  2. Tommy Morrison is born

    Tommy Morrison, American professional boxer, known for american boxer, was born on 1969-01-02.

  3. Christy Turlington is born

    Christy Turlington is born

  4. Jack Kent Cooke, owner of the NHL's LA Kings, fines each player $100 for not arguing with the referees

    Jack Kent Cooke, owner of the NHL's LA Kings, fines each player $100 for not arguing with the referees

  5. Atlantic Records releases Led Zeppelin’s eponymous debut album in the United States

    Atlantic Records releases Led Zeppelin’s eponymous debut album in the United States

More from the 1960s

Apollo 11 Moon Landing

NASA's Apollo 11 mission successfully lands the first humans on the Moon. Neil Armstrong and Buzz Aldrin become the first people to walk on the lunar surface.

space exploration

Martin Luther King Jr.'s "I Have a Dream" Speech

Martin Luther King Jr. delivers his iconic "I Have a Dream" speech during the March on Washington for Jobs and Freedom, calling for an end to racism in the United States.

civil rightspolitics government
birth

Tommy Morrison is born

Tommy Morrison, American professional boxer, known for american boxer, was born on 1969-01-02.

birth

Gabrielle Carteris is born

Gabrielle Carteris is born

Frequently Asked Questions

What happened on September 5, 1968?
A nuclear and radiation accident is defined by the International Atomic Energy Agency (IAEA) as "an event that has led to significant consequences to people, the environment or the facility." Examples include lethal effects to individuals, large radioactivity release to the environment, or a reactor core melt. The prime example of a "major nuclear accident" is one in which a reactor core is damaged and significant amounts of radioactive isotopes are released, such as in the Chernobyl disaster in 1986 and Fukushima nuclear accident in 2011. The impact of nuclear accidents has been a topic of debate since the first nuclear reactors were constructed in 1954 and has been a key factor in public concern about nuclear facilities.
Why is The USSR performs a nuclear test at the Semipalatinsk Test Site in northeaste... significant?
A nuclear and radiation accident is defined by the International Atomic Energy Agency (IAEA) as "an event that has led to significant consequences to people, the environment or the facility.

Explore More

September 5 in HistoryYear 1968