Ulysses S. Grant Posing With Family Members, Entourage, and Locals at the Karnak Temple Complex in Egypt (1870's)

Ulysses S. Grant (wearing pith helmet) posing with family members, entourage, and locals at the Karnak Temple Complex in Egypt, c. 1877.

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Union Soldiers Wounded at the Battle of Spotsylvania Court House at a Field Hospital in the Yard of the Marye House in Fredericksburg, Virginia (1864)

Union soldiers wounded at the Battle of Spotsylvania Court House at a field hospital in the yard of the Marye House in Fredericksburg, Virginia, May 1864. Attributed to a photographer employed by Mathew Brady. From Miller's Photographic History of the Civil War.

Two Portraits of Union Soldier Thaddeus Whipple Taken 44 Years Apart in 1862 and 1906

Two portraits of Union soldier Thaddeus Whipple taken 44 years apart in 1862 and 1906. He served as a musician with Company E of the 13th Vermont Volunteer Infantry Regiment during the Civil War. From the book Pictorial History Thirteenth Regiment Vermont Volunteers War of 1861-1865.

A Group of Men Playing Dominoes Possibly at a Hospital in France (1850's)

Portrait of a group of men playing dominoes possibly at a hospital in France, c. 1850's. Attributed to Pierre Ambroise Richebourg. Animated time-lapse stereoview.

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Portrait of Employees of H and M Haynes, a Company Which Made Harnesses and Carriages, Posing With Their Tools in Sturbridge, Massachusetts (1863)

Portrait of employees of H and M Haynes, a company which made harnesses and carriages, posing with their tools in Sturbridge, Massachusetts, 1863.

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Two Portraits of Union Soldiers Posing in Front of a Hut in an Unidentified Winter Camp During the Civil War

Two portraits of Union soldiers posing in front of a hut in an unidentified winter camp during the Civil War. Attributed to Mathew Brady.

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A Column of Belgian Lancers in a City Street During World War 1

A column of Belgian lancers in an unidentified city during World War 1.

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A Man Posing With the Tombstone of Aaron Burr in Princeton Cemetery in Princeton, New Jersey (1850′s)

A man posing with the tombstone of Aaron Burr in Princeton Cemetery in Princeton, New Jersey, c. 1850′s. By Frederick De Bourg Richards.

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Portrait of Union Soldier Almus Stevens Who Served With Company B of the 13th Vermont Volunteer Infantry Regiment During the Civil War (1862)

Portrait of Union soldier Almus Stevens posing with a revolver, 1862. He served with Company B of the 13th Vermont Volunteer Infantry Regiment during the Civil War. From the book Pictorial History Thirteenth Regiment Vermont Volunteers War of 1861-1865.

The Body of a Dead Russian in the Carpathian Mountains on the Eastern Front During World War 1

The body of a dead Russian in the Carpathian Mountains on the Eastern Front during World War 1.

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View of Spectators in the Stands to Watch an Intercollegiate Regatta on Saratoga Lake in New York (1874)

View of spectators in the stands to watch an intercollegiate regatta on Saratoga Lake in New York, 1874. By Baker and Record. Animated stereoview.

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Portrait of Six Union Musicians of the 4th Vermont Volunteer Infantry Regiment Posing in a Camp in Virginia (1862)

Portrait of six Union musicians of the 4th Vermont Volunteer Infantry Regiment posing in a camp in Virginia, c. 1862. By George Houghton.

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An American Machine Gun Company on the Front Line Somewhere on the Western Front Around the Time of the Armistice During World War 1 (1918)

An American machine gun company on the front line somewhere on the Western Front around the time of the Armistice during World War 1, November 1918. From the Official History of the 315th Infantry.

Union Soldiers Convalescing From Wounds or Disease in the Interior of a Hospital Ward in Alexandria, Virginia, During the Civil War

Union soldiers convalescing from wounds or disease in the interior of a hospital ward in Alexandria, Virginia, during the Civil War. From Miller's Photographic History of the Civil War.

Two German Soldiers Posing With Rats Caught in Their Trench During World War 1

Two German soldiers posing with rats caught in their trench during World War 1.

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Animated Stereoscopic Portrait of the Commodore of the Elkhorn Club (1860's)

Animated stereoscopic portrait of the commodore of the Elkhorn Club, c. 1860's. By John Carbutt.

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American Soldiers of the 79th Infantry Division Posing With Captured German POWs and Machine Guns During World War 1

American soldiers of the 79th Infantry Division posing with captured German POWs and machine guns during World War 1. From the Official History of the 315th Infantry.

Portrait of Three Unidentified Sanitary Commission Nurses During the Civil War

Portrait of three unidentified Sanitary Commission nurses during the Civil War. From Miller's Photographic History of the Civil War.

View of a Line of Bodies of Dead Confederate Soldiers Gathered For Burial the Day After Fighting on Alsop's Farm During the Battle of Spotsylvania Court House (1864)

A line of bodies of dead Confederate soldiers gathered for burial the day after fighting on Alsop's Farm during the Battle of Spotsylvania Court House, May 20, 1864. By Timothy O'Sullivan. Animated stereoview.

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The Body of Confederate General Clement A. Evans Lying in State in the Georgia State Capitol in Atlanta (1911)

The body of Confederate General Clement A. Evans lying in state in the Georgia State Capitol in Atlanta, July 5, 1911. From Confederate Veteran magazine.

View of a People Posing in Front of Shops in a Street in Corinne, Utah (1869)

View of a people posing in front of shops in a street in Corinne, Utah, 1869. By William Henry Jackson.

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Stereoscopic Portrait of an Unidentified Bearded Man Near Glen Falls, New York (1800's)

Stereoscopic portrait of an unidentified bearded man near Glen Falls, New York, c. 1800's. By Seneca Ray Stoddard.

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Daguerreotype Portrait of American Abolitionist Charles Lenox Remond (1850's)

Daguerreotype portrait of American abolitionist Charles Lenox Remond, c. 1850′s. By Samuel Broadbent.

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Daguerreotype Portrait of a Woman Named Margaret Blydenburgh Reading a Book (1840′s)

Daguerreotype portrait of a woman named Margaret Blydenburgh reading a book, c. 1840′s.

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View of the Skeletonized Bodies of Soldiers, Uniforms, and Equipment on the Bull Run Battlefield Near Manassas, Virginia (1865)

View of skeletonized bodies of soldiers, uniforms, and equipment on the Bull Run battlefield near Manassas, Virginia, c. 1865. Possibly by Andrew J. Russell.

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Portrait of a Group Posing With Items For Sale in the Interior of George B. Reed and Company’s Auctioneer Saleroom on Cedar Street in New York City (1860's)

Portrait of a group posing with items for sale in the interior of George B. Reed and Company’s auctioneer saleroom on Cedar Street in New York City, c. 1860′s. Published by the National Photograph Company.

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Hand-Colored Daguerreotype Portrait of an Unidentified Boy

Hand-colored daguerreotype portrait of an unidentified boy, c. 1850. By R. Lowe.

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Daguerreotype View of Fort Howard From Across the Fox River in Green Bay, Wisconsin (1851)

Daguerreotype view of Fort Howard from across the Fox River in Green Bay, Wisconsin, 1851. The officer standing on the wharf is identified as a Major Haller.

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Portrait of Three Ute Indian Warriors

Portrait of three Ute Indian warriors. By Charles Weitfle.

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Daguerreotype Portrait of American Abolitionist Henry Clarke Wright (1847)

Daguerreotype portrait of American abolitionist Henry Clarke Wright,c. 1847. By Antoine Claudet.

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