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Image of Pluto from NASA’s New Horizons spacecraft taken on July 13, 2015.
Discovering Pluto
statue of Joseph Smith in a garden
Joseph Smith and the Book of Mormon
a plane flying over a group of West Berlin citizens
The Berlin Airlift
One of the McMinnville UFO photographs. Skeptics have concluded that the UFO was a small model suspended by wires or string from the power lines visible at the top of the photo.
The Air Force Investigation into UFOs
Poinsette
The Story of Poinsettia Day and U.S.-Mexico Relations
a woman at a witch trial. she is wearing white and has her arms up in air with lightening bolts coming out of them. A judge, lawyer and an audience of people look on.
What was Wrong with the Judges at the Salem Witch Trials?
Olympic Broadcasting Services covering the men's 10 kilometre marathon swim at the 2012 Olympic Games.
The Big Game on the Small Screen: The Televised Transformation of Sport
Fourth of July celebration in Philadelphia, 1819.
The United States: Democracy or Republic?
Ippolito Caffi's Eclisse di sole alle Fondamenta, Nove 1842, a solar eclipse and people standing on a shore looking up at it
Solar Eclipses in American History
The 1969 Harlem Cultural Festival
Black Woodstock: The 1969 Harlem Cultural Festival
Count Gaston de Chasseloup-Laubat aboard his Jeantaud electric car, 1899.
The Historical Dominance of the Electric Car
SpaghettiOs in background, tv dinner, Tang bottle, Spam tin and Jello mold in foreground
SpaghettiOs and the Age of Processed Foods
A Nuclear Power Plant in the Untied Kingdom against a blue sky.
How Green Is the Atom?
resident Harry Truman, left, congratulates Gen. George Marshall (architect of the Marshall Plan) , Fair Use via AP
The Marshall Plan
Armed United Mine Workers of America strikers, Ludlow 1914, Public Domain
The Ludlow Massacre: Fighting for Workers’ Rights, 1914
Bird's-eye view of the 1993 border blockade enacted by CBP Border Patrol agents in El Paso, Texas as part of Operation Hold the Line.
Fortifying the U.S.-Mexico Boundary: The 1993 “Hold the Line” Experiment
Bird's-eye view of the 1993 border blockade enacted by CBP Border Patrol agents in El Paso, Texas as part of Operation Hold the Line.
Fortificación de la frontera entre EEUU y México: el experimento “Hold the Line” de 1993
West Berliners stand amid the rubble of WWII and watch U.S. Air Force transport planes land at Templehof Airport during the Berlin Airlift in 1948.
The Berlin Airlift
a group of male Mexican immigrants standing in a field
Operation Wetback: The Roots of Immigrant Deportations Today
women Labeling and packing Iletin brand insulin, 1924, National Museum of American History, CC BY-NC-ND 2.0 DEED
The First Insulin Injection for Diabetes
The Statue of Liberty during the June 10, 2021 solar eclipse.
Solar Eclipses in American History
horseshoe shape made up of people
From College Towns into Knowledge Towns: On the Future of Town/Gown Relations
U.S.S. Arizona on fire after the Bombing of Pearl Harbor
Why Did Japan Attack Pearl Harbor?
Rosetta Tharpe holding a guitar, Lucky Milliner and Moe Gayle in 1941
The Mother of Rock and Roll