The Conversation: “Obituaries preserve what families most want remembered about the people they cherish most. Across time, they also reveal the values each era chose to honor. In a study published in the journal Proceedings of the National Academy of Sciences, we analyzed 38 million obituaries of Americans published from 1998 to 2024. We identified the values families most often highlight, and how those values shift across generations, regions and major historical events. Specifically, working with psychologists Liane Young and Thomas Mazzuchi, we examined the language used on Legacy.com, an online platform where families often post obituaries and share memories of loved ones. During their lifetime, most people tend to be guided by a small set of broad values like caring for others, honoring tradition, keeping loved ones safe and seeking personal growth. To understand how these values showed up in remembrance, we used text-analysis tools built on curated lists of everyday words people use when talking about those themes. By analyzing the words that appeared again and again in memorials, we could see which values communities chose to emphasize when looking back on the lives of their loved ones, and how those patterns changed over time. Because the dataset included 38 million obituaries, the analysis ran on a supercomputer. Across nearly 30 years of obituaries, words related to the value “tradition” appeared most often – many tributes described religious participation and enduring customs. Words related to the value “benevolence” – caring for the welfare of others – were also consistently prominent. In fact, tradition and benevolence formed the dominant value profile across the dataset: They appeared in more than 70% of the obituaries. By contrast, words related to values like “achievement” and “power” appeared far less often. Historical events did leave a mark. After the attacks of Sept. 11, 2001, the language families used to remember loved ones shifted compared with the period just before the attacks – and those shifts persisted for at least a year. Words related to the value “security” – including terms like “surviving,” “health” and “order” – showed up less often. At the same time, families used more language related to values like “benevolence” and “tradition.” Terms like “caring,” “loyal” and “service” showed up more often. These changes were especially strong in New York, where the attacks had the most direct impact..”