In the first half of the twentieth century, hats seem to be totally ubiquitous in every single photograph or video. Was there any reason for this, other than fashion? Was there anything different that would have made hats more useful then than now?

by bigsadparrot
mimicofmodes

There's always more to be said, but I've responded to this question before: What factors led to the downturn in menswear hat sales in the 1960s?

dol_amrothian

Are you specifically looking for men's hats, women's hats, or just hats generally in the West? The change in women's hats is a fascinating piece of social history, especially in its marker for class and a woman's role in society.