<a href="https://en.wikipedia.org/wiki/Manhattan_Project" id="mw4g" rel="mw:WikiLink" title="Manhattan Project">Manhattan Project</a>: The <a href="https://en.wikipedia.org/wiki/Atomic_Age" id="mw4w" rel="mw:WikiLink" title="Atomic Age">Atomic Age</a> begins when the United States <a href="https://en.wikipedia.org/wiki/Trinity_(nuclear_test)" id="mw5A" rel="mw:WikiLink" title="Trinity (nuclear test)">successfully detonates</a> a <a href="https://en.wikipedia.org/wiki/Plutonium" id="mw5Q" rel="mw:WikiLink" title="Plutonium">plutonium</a>-based test <a href="https://en.wikipedia.org/wiki/Nuclear_weapon" id="mw5g" rel="mw:WikiLink" title="Nuclear weapon">nuclear weapon</a> near <a href="https://en.wikipedia.org/wiki/Alamogordo,_New_Mexico" id="mw5w" rel="mw:WikiLink" title="Alamogordo, New Mexico">Alamogordo, New Mexico</a>.