Based on historical perspectives, reconstructing humans' past is unattainable because "we only have fragments of the evidence." This implies that in trying to reconstruct history or the past, we usually don't have the full evidence or pieces to reconstruct the past.For instance, archeologists may find the foundation of an ancient temple, the rubbles of ancient forts, etc.However, while we may try to reconstruct the full temple of old or full forts structure of old, we can't fully get it right because we don't know exactly what it looks like.We can only make hypothetical images of those ancient structures, towns, or cities.
Hence, in this case, it is concluded that "the reconstruction of humanity's past is elusive because it is hard to get the full information or details of the past."