In the small Pennsylvania town of Gettysburg, 3,000 Union soldiers prepare to face the onslaught of 60,000 advancing Confederate soldiers.

FACT CHECK: We strive for accuracy and fairness. But if you see something that doesn't look right, click here to contact us! HISTORY reviews and updates its content regularly to ensure it is complete and accurate.

RELATED CONTENT

For three days in July 1863, Union and Confederate forces clash at Gettysburg in one of the most pivotal battles of the Civil War.

Find out how the actions of a former Maine professor helped the Union win at Gettysburg, the deadliest battle of the Civil War.

Abraham Lincoln's Gettysburg Address is regarded as one of the most powerful and poignant speeches in American history.

Original or facsimile? The original Gettysburg Address bears creases in it it from when Abraham Lincoln placed it in his pocket.

President Abraham Lincoln delivers one of the most moving and infamous speeches in U.S. History in this scene from "Bloodbath."

General Robert E. Lee disregards a basic principle of military strategy and orders his forces to attack Union troops perched on the high ground at Cemetary Ridge. Known as Pickett's Charge, the maneuver was a disastrous end to the three-day battle.