February 1957
‘March 18, 1957-September 6, 1957
May 27, 1957-June 7, 1957
First Plowshare symposium held at
Livermore Laboratory.
U.N. Disarmament Subcammittee ("of
Five") held last series of negotiations
in London,
Joint Committee on Atomic Energy held
hearings on radioactive fallout and its
effects on man.
May 1957-March 1958
,
The Commission conducted Operaticn
Plumbbob at the Nevada Test Site,
firing thirty-three tests including
shot "Rainier," the first detonation
contained underground.
was also detonated.
April-August 1958
July 1, 1958-August 21, 1958
Shot "Smoky"
The Commission conducted the thirty-
five shot Operation Hardtack I in the
Marshall Islands.
The "Conference of Experts to Study the
Possibility of Detecting Violations of
a Possible Agreement on the Suspensicn
of Nuclear Tests" held.
July 14, 1958
John A. McCone became chairman cf the
Atomic Energy Commission.
August 22, 1958
President Eisenhower announced
moratorium on weapon testing to becin
October 31.
August-September 1958
The Commission conducted Operation
September 1-13, 1958-
The United States participated in the
in the South Atlantic, detonating
three high-altitude nuclear tests.
second United Nations Internationa.
Conference on the Peaceful Uses cf
Atomic Energy in Geneva, Switzerland.
September 1958
Lihby-—Cockcroft agreement signed,
allowed closer cooperation for mutual
defense between United States anc Great
Britain.
September-October 1958
The Commission conducted Operation
Hardtack II at the Nevada Test Site,
wnich consisted of thirty-six tests.
&Q