Atop a scenic bluff overlooking the Mississippi River and downtown Dubuque there once lay a graveyard dating to the 1830s, the earliest days of American settlement in Iowa. Though many local residents knew the property had once been a Catholic burial ground, they believed the graves had been moved to a new cemetery in the late nineteenth century in response to overcrowding and changing burial customs. But in 2007, when a developer broke ground for a new condominium complex here, the heavy machinery unearthed human bones. Clearly, some of Dubuque’s early settlers still rested there—in fact, more than anyone expected. For the next four years, staff with the Burials Program of the University of Iowa Office of the State Archaeologist excavated the site so that development could proceed.

The excavation fieldwork was just the beginning. Once the digging was done each summer, skeletal biologist Robin M. Lillie and archaeologist Jennifer E. Mack still faced the enormous task of teasing out life histories from fragile bones, disintegrating artifacts, and the decaying wooden coffins the families had chosen for the deceased. Poring over scant documents and sifting through old newspapers, they pieced together the story of the cemetery and its residents, a story often surprising and poignant. Weaving together science, history, and local mythology, the tale of the Third Street Cemetery provides a fascinating glimpse into Dubuque’s early years, the hardships its settlers endured, and the difficulties they did not survive.

While they worked, Lillie and Mack also grappled with the legal and ethical obligations of the living to the dead. These issues are increasingly urgent as more and more of America’s unmarked (and marked) cemeteries are removed in the name of progress. Fans of forensic crime shows and novels will find here a real-world example of what can be learned from the fragments left in time’s wake.

With the prevalence of smartphones, massive data storage, and search engines, we might think of today as the height of the information age. In reality, every era has faced its own challenges of storing, organizing, and accessing information. While they lacked digital devices, our ancestors, when faced with information overload, utilized some of the same techniques that underlie our modern interfaces: they visualized and spatialized data, tying it to the emotional and sensory spaces of memory, thereby turning their minds into a visual interface for accessing information.

In Excavating the Memory Palace, Seth David Long mines the history of Europe’s arts of memory to find the origins of today’s data visualizations, unearthing how ancient constructions of cognitive pathways paved the way for modern technological interfaces. Looking to techniques like the memory palace, he finds the ways that information has been tied to sensory and visual experience, turning raw data into lucid knowledge. From the icons of smart phone screens to massive network graphs, Long shows us the ancestry of the cyberscape and unveils the history of memory as a creative act.