View of a host of world leaders, heads of state, royalty and dignitaries invited by Shah of Iran Mohammad Reza Pahlavi and assembled in an audience to view the parade during celebrations to commemorate the 2500th anniversary of the Persian Empire amid the ruins of the city of Persepolis in Iran in October 1971. (Photo by Rolls Press/Popperfoto via Getty Images/Getty Images)
Getty Images

Popperfoto Rolls Press/Popperfoto

View of members of the Iranian armed forces, dressed in ancient costumes, taking part in a parade during celebrations to commemorate the 2500th anniversary of the Persian Empire amid the ruins of the city of Persepolis in Iran in October 1971. A host of world leaders, heads of state, royalty and dignitaries are in the audience to view the celebrations. (Photo by Rolls Press/Popperfoto via Getty Images/Getty Images)
Getty Images

Popperfoto Rolls Press/Popperfoto

Foreign Royalty, Personalities, pic: October 1971, at Persepolis, The Shah of Iran (Persia) with the Empress Farah Diba at a ceremony at Persepolis to celebrate the founding of the Persian Empire 2500 years ago (Photo by Popperfoto via Getty Images/Getty Images)
Getty Images

Popperfoto Popperfoto