Alexandria is flatter today than it was in Cleopatra’s lifetime. It is oblivious to its ancient street plan; it no longer gleams white. The Nile is nearly two miles farther east. The dust, the sultry sea air, Alexandria’s melting purple sunsets, are unchanged. Human nature remains remarkably consistent, the physics of history immutable. Firsthand accounts continue to diverge wildly.* For well over two thousand years, a myth has been able to outrun and outlive a fact.