<a href="https://en.wikipedia.org/wiki/Cold_War" id="mw7w" rel="mw:WikiLink" title="Cold War">Cold War</a>: <a href="https://en.wikipedia.org/wiki/Harry_Gold" id="mw8A" rel="mw:WikiLink" title="Harry Gold">Harry Gold</a> is sentenced to 30 years in jail for helping <a href="https://en.wikipedia.org/wiki/Klaus_Fuchs" id="mw8Q" rel="mw:WikiLink" title="Klaus Fuchs">Klaus Fuchs</a> pass information about the <a href="https://en.wikipedia.org/wiki/Manhattan_Project" id="mw8g" rel="mw:WikiLink" title="Manhattan Project">Manhattan Project</a> to the <a href="https://en.wikipedia.org/wiki/Soviet_Union" id="mw8w" rel="mw:WikiLink" title="Soviet Union">Soviet Union</a>. His testimony is later instrumental in the prosecution of <a href="https://en.wikipedia.org/wiki/Julius_and_Ethel_Rosenberg" id="mw9A" rel="mw:WikiLink" title="Julius and Ethel Rosenberg">Julius and Ethel Rosenberg</a>.