Examlex
All nuclei of a given element have the same number of neutrons.
George H.W. Bush
The 41st President of the United States, serving from 1989 to 1993, known for his leadership during the end of the Cold War and the Gulf War.
Berlin Wall
A fortified barrier that divided Berlin from 1961 to 1989, built by the German Democratic Republic (East Germany) to prevent East Germans from fleeing to West Berlin and West Germany.
East Germany
Officially the German Democratic Republic (GDR), a state that existed from 1949 to 1990 in the eastern part of Germany, established after World War II and during the Cold War.
CIA
The Central Intelligence Agency, a civilian foreign intelligence service of the federal government of the United States, tasked with gathering, processing, and analyzing national security information.
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