In 1868, Edward Draker Cope received a shipment of bones from Kansas that looked promising. It was probably something yet unidentified in America, and he wanted to be the first to publish it. Rushing to beat his rivals to the punch, Cope published this restoration of the elasmosaurus platyurus in the American Philosophical Society journal.
In this original restoration, Cope put the animal's skull on the right, giving it a short neck and a long tail.
Shortly after the reconstruction was published, Cope's rival, O.C. Marsh noticed that the skull had likely been placed on the wrong end of the skeleton. He contacted fellow paleontologist Joseph Leidy who confirmed the mistake.
Cope quickly published a corrected version of the drawing with the skull on the left, giving the creature a longer neck and shorter tail.
Cope tried to purchase all copies of American Philosophical Society that contained the incorrect version, but the damage to his reputation was done. And his rivalry with Marsh would only intensify.
The Last Stand, the final act of General George Custer's larger-than-life career, played out on a grand stage with a spellbound public engrossed in the drama. Part of the Wild West collection.
The most daring and innovative accomplishment at the turn of the 20th century.
Today one of the most-recognized figures in American literary history, poet Walt Whitman was denounced by critics in his own time.
The boy behind the myth, who in just a few short years transformed himself from a skinny orphan to the most feared man in the West and an enduring icon. Part of The Wild West collection.
From Joseph Smith's discovery of gold tablets to persecution, migration, and settlement in Utah, the film explores the history of the most American of religions.
Vivid memories of those trapped in the terrifying temblor of 1906 that killed thousands of Californians.
John Wesley Powell's epic journey into the unknown Grand Canyon was filled with adventure as his team mapped the Colorado River for the first time.
High on a granite cliff in South Dakota's Black Hills tower the huge carved faces of four American presidents: George Washington, Thomas Jefferson, Abraham Lincoln, and Theodore Roosevelt.