Diversity

 Is diversity a mark only of our times? History segregated centuries and decades, giving each period tags. So under "Middle Ages" we can find people fearing god, under "Renaissance" we can find people praising human being, under "Interwar" we can find parties and nihilism. Hmm... Hard to imagine that everyone back then had exactly the same thoughts, that all the artists painted in the exact same manner, philosophers had the same thoughts, writers wanted to write similar novels. 

If not diversity, then what differs our times from the times that passed and times that will come?