At the risk of being close to contemporary, the phrase Pax Americana has been used many times in the past 100 years to describe the success of United States' influence over the Western Hemisphere then much of the European/non-aligned bloc even during the Cold War.

Compared to other golden ages, we can obviously see far more of the concept's weaknesses. Bear in mind that this phrase refers specifically to the foreign policy and political aspects of the relative period of stability afforded to much of the Western bloc after World War II, not to the far more tumultuous state of domestic affairs or civil rights especially in the United States which did not reach its landmark accomplishments until the late 1960's.

Athens also reached a definite period of triumphalism after the Persian Wars, forming the Delian League to aggressively pursue a level of influence over the Greek city-states not seen in centuries. Pericles, one of Athens' most powerful statesmen, helped to embody the sense of this age which also fostered the corresponding rise of Western philosophy (and its fascinating organic interaction with Athenian politics). It's worth noting however, that this "golden age" quickly precipitated hostilities with Sparta's own league of city-states, a devastating plague, and the end of Greek hegemony as Macedonian military supremacy rose.

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