Long 19th- 20th centuries

Darlington Trail

South-Central Pennsylvania’s Darlington Hiking Trail

The Darlington Hiking Trail in south-central Pennsylvania runs over a seven-mile trajectory going east-west from the Susquehanna River to the Appalachian Trail, where the path turns into the Tuscarora Trail. The Darlington path actually predates the Appalachian Trail, having its origins from 1908, when people who began the Pennsylvania Alpine Club (such as the famed […]

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South Mountain Iron and Mining Company

The Reforestation of Pine Grove Furnace

The area comprising Pine Grove Furnace, near where this photo was taken, was practically clearcut in the 19th century as the lucrative iron works industry increased its influence. Many of the waterways were also harnessed in service to the area’s iron forges. In 1912 and 1913, the South Mountain Mining & Iron Company sold thousands

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WWII Hospital Ward

World War II and Syndrome K

This might be a photo that repells at first glance — the hospital ward has long rows of undifferentiated beds, and they are surrounded by brick dehumanizing walls. In the final years of the Second World War, this ward in the hospital of Fatebenefratelli contained men, women, and children who were diagnosed with a disease

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The Burghers of Calais

Wealthy Calais Classes Sacrifice for the Less Powerful

This detail of Auguste Rodin’s masterpiece, _The Burghers of Calais_ (1884-89) evokes a moment of despondency and sacrifice that took place in the Hundred Year’s War between France and England in the Late Middle Ages. The story ultimately has a happy ending, but nowhere is this foreshadowed in Rodin’s work.In 1346, the French town of

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Tuscarora Trail

South-Central Pennsylvania’s Tuscarora Trail

These images are from the northern terminus of the Tuscarora Trail, a 252-mile path from south-central Pennsylvania to the Shenandoah National Park in Virginia. In the 1960s, the security of the Appalachian Trail was jeopardized by commercial land owners. Future-minded members of the Appalachian Trail Conservancy began work on the Tuscarora Trail as a potential

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Camp Michaux

Camp Michaux at Pine Grove State Furnace Park

In south-central Pennsylvania’s Pine Grove Furnace State Park lie the ruins of one of three secret interrogation camps in the continental United States for prisoners of World War II. You are looking on the first slide at the remains of a large mess hall. Camp Michaux was originally built by the Civilian Conservation Corps in the

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Francois Fleury-Richard

Francois Fleury-Richard’s “Little Red Riding Hood”

This painting by Francois Fleury-Richard shows a scene from the children’s fairy-tale “Little Red Riding Hood.” The illustration dates to about 1820, which is centuries after the original story developed. However, some features of this piece render the original spirit of the tale better than later versions. We see the smallness of the girl, who

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Wildlife Sanctuary

The F.J. Reineman Wildlife Sanctuary

Along a particularly rocky portion of the Tuscarora Trail in Perry County, Pennsylvania, is situated a 3,037-acre wildlife sanctuary established by Florence W. Erdman in memory of her mother. The F.J. Reineman Wildlife Sanctuary dates from 1966, and the trust establishing this land gave it to Dickinson College in Carlisle, Pennsylvania, which is just near

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Gunter Valley Dam

South-Central Pennsylvania’s Gunter Valley Dam

You are looking at an ecological transformation: what you see here is the former Gunter Valley Dam, which used to block Trout Run in the Tuscarora forest of south-central Pennsylvania. The reservoir from the dam supplied the community in Shippensburg with water from the early 1960s, when it was built, until about 2010, when engineers

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La Ville Lumiere and the Desire to Stop Protests

Like spokes on a wheel, these wide boulevards typify the landscape of Paris. Beautiful components of the city, tourists have come to associate these streets with “La Ville Lumiere”. But this architecture has a more sinister origin: it developed out of a desire to stop protesters.The second image shows a now-demolished street called rue du

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Patricia Cowings

Patricia Cowings and the Autogenic-Feedback Training Exercise

In Frank Herbert’s sci-fi _Dune_ series, the Bene Gesserit are amazing space-witches who have developed such mental control over their unconscious physiology that their powers seem superhuman. But Herbert’s ideas weren’t merely fiction: the person you see here is not a space witch, but she did figure out a technique of controlling elements of human

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Job Listing

The Stanford Prison Experiment

Here is one of the most famous job advertisements in the history of psychology. In 1971, Professor Philip Zimbardo enlisted a number of highly educated men to participate in an experiment about prison life. Those who enrolled in the project knew more about what they were getting into than most participants of psychological tests, and

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Hawk Watch at Waggoner’s Gap

Since the year 2000, the Audubon Society has been involved with the site shown here called Hawk Watch. Located at Waggoner’s Gap along the Kittatinny Ridge just north of the town Carlisle in south-central Pennsylvania, Hawk Watch has a legacy of being a major corridor for thousands of hawks, eagles, and falcons who traverse across

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Jean-Paul Sartre

The Philosophy of Jean-Paul Sartre

And here we see Jean-Paul Sartre (1905-1980), one of the greatest philosophers of the 20th century. He embodied the Existentialist movement, which argued that there is no authority or meaning in existence outside of what we make of it. Whether we accept or reject this idea, or find it hopeful or depressing, Sartre’s philosophy admirably

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Tulsa Race Massacre

The Tulsa Race Massacre of 1921

If you haven’t read about the Tulsa Race Massacre of May 31/June 1, 1921, I recommend learning about it. One of the worst race-based killings in American history, it illustrates how simmering bigotry, fear, and mob violence can erupt quickly and cause lasting harm. It also showcases the critical role that historical memory plays in

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Cherry Springs State Park

In the far north-central region of Pennsylvania lies Cherry Springs State Park, an amazing resource that shows how important civil planning can be for enabling the natural world to profit future generations.The area’s old-growth forests were clearcut in the late 19th- and early 20th- centuries, and an airport was built there in 1935 — inauspicious

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Red Queen Hypothesis

“The Red Queen Hypothesis” in European Rabbits

When does the story of Alice actually intersect with rabbits? In the case of evolutionary history — and a failed attempt at biological warfare in Australia.I can think of nothing that demonstrates the process of biological evolution more clearly than viruses. Because their genomes are so small, their genetic mutation rates produce a rapid effect.

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Lucy Wills and Marmite

This is Lucy Wills, a woman lucky enough to possess the resources to do as she pleased. She travelled throughout her life, never married and maintained many long-lasting friendships, and kept up a lifetime of rigorous scientific study — she utilized all these characteristics to develop research that led to the saving of many people’s

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Phrenology

The Racial Undertones of Phrenology

Today’s social-media aficionados take a lot of personality tests that we know are pure rot, like “what your birth crystal says about the way you treat your pets” or “what your quarantine eating habits reveal about your financial investment patterns.” The bust pictured here reflects similarly outlandish claims from a century and a half ago,

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