Columbarium, like Pomponius Hylas’s, represent an ancient Roman business strategy: it was a way of lowering the costs of burial. In other words, people from the same family, multiple families, or burial clubs shared expenses and purchased as a group what they could not afford by themselves. Columbarium (unlike the dovecots they were named after) are usually underground. This was another financial strategy: underground real-estate was less useful and therefore less expensive — just like today! Columbarium, in general, and Pomponius Hylas’s especially, reflect Rome’s working class’ desire for a decent burial. They are also forerunners of the catacombs that many people have heard of but, whose history, few people understand.