This is great survey of some of the head covering practices of the past, looking at both religious and non-religious examples.
Sometimes living in a modern environment, we are under the impression that Islam is something strange and alien. But many of the Islamic practices that seem out of place today were taken for granted in the past. Familiarizing ourselves with this history and even studying it in depth if we have the opportunity to do so is critical in developing confidence and composure as Muslims in the face of so much bitter opposition to us and our faith in this day and age.
Situating our beliefs and practices in context of greater world history is necessary because Islam came as a mercy to all people, not only in the present, but also throughout human history. If we restrict our perspective to the tiny sliver of time that is the present, we will come away with a distorted view of our religion and its relation and relevance to human existence.