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New York 27th Infantry (Union)

1861-05-21

Organized - New York 27th Infantry - New York

1861-07-21

Leadership Change - Regiment - Colonel Henry W. Slocum

1861-07-21

Leadership Change - Division - Colonel David Hunter

1861-07-21

Battle - First Bull Run - Fairfax County, Virginia; Prince William County, Virginia

First Bull Run
First Bull Run

One of earliest battles of the Civil War, it introduced Americans to the idea that this would likely not be a short conflict and blood would be shed:READ MORE

1862-04-05

Battle - Siege of Yorktown (1862) - York County, Virginia; Newport News, Virginia

Siege of Yorktown (1862)
Siege of Yorktown (1862)

Most of Gen. Joseph E. Johnston's army was not on the peninsula on April 4th when Maj. Gen. George B. McClellan departed Fortress Monroe on his Peninsula Campaign. The only force opposing the Yankee advance up the peninsula toward the Confederate capital at Richmond was Maj. Gen. John B. Magruder's small force of two divisions at Yorktown behind the Warwick River. Magruder's deceptive theatrics, conspicuously parading his men back and forth behind his defenses, convinced the Federals that his works were s…READ MORE

1862-05-31

Leadership Change - Brigade - Colonel Joseph J. Bartlett

1862-05-31

Leadership Change - Division - Brigadier General Henry W. Slocum

Brigadier GeneralHenry W. Slocum

1862-05-31

Battle - Seven Pines - Henrico County, Virginia

Seven Pines
Seven Pines

Gen. Joseph E. Johnston withdrew his army from the Virginia Peninsula toward the Confederate capital of Richmond as Maj. Gen. George B. McClellan's army pursued him. By the end of May, Johnston held a defensive position seven miles east of the city on the Richmond and York River Railroad. McClellan's army facing Johnston straddled the Chickahominy River and stretched south. Capturing the initiative from his Union foe, Johnston attempted to overwhelm two Federal corps isolated south of the river. The Confed…READ MORE

1862-06-27

Battle - Gaines' Mill - Hanover County, Virginia

Gaines' Mill
Gaines' Mill

Despite his victory over the Confederates at Beaver Dam Creek on June 26th, Maj. Gen. Fitz John Porter's Fifth Corps abandoned its position early on June 27th and established a new defensive line along Boatswain's Creek, just north of the Chickahominy River.READ MORE

1862-08-28

Battle - Second Bull Run - Prince William County, Virginia

Second Bull Run
Second Bull Run

After the early summer collapse of the Union Peninsula Campaign offensive to capture Richmond, Robert E. Lee sought to move his army north and threaten Washington DC before Union forces could regroup.READ MORE

1862-09-14

Battle - South Mountain - Frederick County, Maryland; Washington County, Maryland; Boonsboro, Maryland

South Mountain
South Mountain

After his success at Second Manassas, Gen. Robert E. Lee led the Army of Northern Virginia north across the Potomac River on an invasion of Maryland in September of 1862. Lee divided his army, sending a portion of it into western Maryland while Lieut. Gen. Stonewall Jackson's wing attempted to capture the Federal garrison at Harper's Ferry. The bold plan was jeopardized on September 13th when a mislaid copy of Lee's orders revealing the Confederates' plans was given to Union commander Maj. Gen. George B. M…READ MORE

1862-09-17

Leadership Change - Regiment - Lieutenant Colonel Alexander D. Adams

Lieutenant ColonelAlexander D. Adams

1862-09-17

Leadership Change - Division - Major General Henry W. Slocum

Major GeneralHenry W. Slocum

1862-09-17

Battle - Antietam - Sharpsburg, Maryland

Antietam
Antietam

The Army of the Potomac, under the command of Maj. Gen. George McClellan, mounted a series of powerful assaults against General Robert E. Lee's forces along Antietam Creek near Sharpsburg, Maryland, on September 17th, 1862.READ MORE

1862-12-13

Battle - Fredericksburg - Fredericksburg, Virginia

Fredericksburg
Fredericksburg

In early November, Maj. Gen. Ambrose E. Burnside took command of the Army of the Potomac, and made immediate plans to move the army once again toward Richmond.READ MORE

1863-04-30

Leadership Change - Regiment - Colonel Alexander D. Adams

1863-04-30

Leadership Change - Brigade - Brigadier General Joseph J. Bartlett

Brigadier GeneralJoseph J. Bartlett

1863-04-30

Leadership Change - Division - Brigadier General William T. H. Brooks

Brigadier GeneralWilliam T. H. Brooks

1863-04-30

Battle - Chancellorsville - Spotsylvania County, Virginia

Chancellorsville
Chancellorsville

On April 27, 1863, Maj. Gen. Joseph Hooker launched a turning movement designed to pry Robert E. Lee's Army of Northern Virginia out of its lines at Fredericksburg.READ MORE

1863-05-03

Battle - Salem Church - Spotsylvania County, Virginia

Salem Church
Salem Church

The Battle of Salem Church was part of Chancellorsville Campaign and was fought in Spotsylvania County, Virginia on May 4rd and 4th, 1863.READ MORE

1863-05-03

Battle - Second Fredericksburg - Fredericksburg, Virginia

1863-05-28

Mustered Out - New York 27th Infantry - New York

1864-05-05

Leadership Change - Regiment - Captain John B. Eaton

1864-05-05

Leadership Change - Brigade - Captain John Edwards Jr.

1865-03-25

Leadership Change - Division - undefined Bvt BG John C. Tidball, and Major Theodore Miller Inspector of Artillery

1865-03-25

Battle - Fort Stedman - Petersburg, Virginia

Fort Stedman
Fort Stedman

By March of 1865, Lieut. Gen. Ulysses S. Grant's grip on the Confederate lines around Petersburg was having its desired effect. Outnumbered and weakened by disease, desertion and shortage of food and supplies, Gen. Robert E. Lee had few options. After careful study of the Union troops in his sector of the line, Maj. Gen. John B. Gordon suggested to Lee the possibility of a successful offensive strike against Grant. In front of Gordon's men, Union-held Fort Stedman seemed the best target for a Confederate a…READ MORE

1865-04-16

Battle - West Point - West Point, Georgia

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