American Science’s Promoter-in-Chief

The great-grandson of a famous founder (of the nation and this University) and “boyhood’s friend” of the president of the Confederacy, educational reformer and onetime Penn professor Alexander Dallas Bache made his own reputation by championing the professionalization of American science in the mid-1800s.

The Olden Bough

Humans have revered ancient trees for about as long as we’ve chopped down forests. What does that fraught relationship reveal about our past? And can it illuminate a path toward a more hopeful future?

Sir Henry Thornton, On and Off the Rails

Knighted by Britain for his work as the Allies’ “railroad czar” in World War I, the Penn alumnus and Pennsylvania Railroad veteran went on to remake the Canadian National Railways before the Great Depression, poor health, and scandal brought him low.

Framing History

A pair of history profs teams up with Getty Images to create a public-facing, photography-oriented window into Black history.

Thinking About Ukraine

Penn faculty examine the conflict from multiple perspectives—sometimes clashing, sometimes meshing, and often thought-provoking. Plus: Mike Logsdon C’03’s photographs from Ukraine.

Constitution, Revised

Thomas Jefferson thought every generation should change the nation’s fundamental law. A new book imagines how that might have played out.

The History Wars

Education scholar Jonathan Zimmerman on how the US republic lost the ability to understand itself—and how we can help our children recover it.

Calling It

How John Lapinski and a squad of Penn faculty and students backing him up on the NBC News Decision Desk navigated an election season that was unprecedented—and could set a pattern for the future.