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Thomas McKean was a well-known lawyer, politician, and judge from New London, Pennsylvania. He is a Founding Father because he signed the Declaration of Independence and Articles of Confederation and was the second President under the Articles. He also participated in key events that shaped the American Revolution, including the Stamp Act Congress, First Continental Congress, and Second Continental Congress. He also played a key role in Pennsylvania’s ratification of the United States Constitution.

William McKinley was the 25th President of the United States. McKinley also served as an officer in the Union Army during the Civil War, represented Ohio in the U.S. House of Representatives, and served as Governor of Ohio.

Key facts about William McKinley, Jr., twenty-fifth President of the United States.

James Birdseye McPherson was a prominent engineer and officer in the Union Army during the Civil War. His life and career were tragically cut short in 1864 when he was killed in action during the Battle of Atlanta.

Victorious commander at the Battle of Gettysburg, Major General George G. Meade commanded the Army of the Potomac throughout the Gettysburg, Bristoe, Mine Run, Overland, Petersburg, and Appomattox Campaigns.

APUSH Definition — George Meade (1815–1872) was an officer in the United States Army during the Civil War. He was one of the most important Union commanders during the war and is most well-known for leading the Union Army to victory at the Battle of Gettysburg.

Richard Meade was one of four graduates of the U.S. Military Academy who initially fought for the Union before switching sides during the Civil War.

Samuel Medary was an influential politician and newspaperman, who supported State's Rights and opposed the Abolition of slavery. During the Civil War, he published the anti-war newspaper, The Crisis. Medary also served as Governor of the Minnesota Territory and as Governor of the Kansas Territory.

Mercantilism — or the Mercantile System — was an economic theory implemented by England that allowed the American Colonies to flourish, but also led to the policies that contributed to the unrest that caused the American Revolution, and the American Revolutionary War.

General Hugh Mercer was an officer in the Continental Army during the American Revolutionary War. He fought in the early battles of the New York-New Jersey Campaign and was mortally wounded at the Battle of Princeton.

The Meridian Campaign was a Union military operation led by General William T. Sherman across Mississippi from February 3 to March 4, 1864. Sherman’s forces captured Meridian and destroyed railroads, bridges, locomotives, and other Confederate infrastructure, although William Sooy Smith’s cavalry failed to join him after Confederate forces defeated Smith at the Battle of Okolona. The Union victory demonstrated that Sherman’s army could operate deep in Confederate territory while living off the land.

The Battle of Meridian was fought from February 14 to 20, 1864, during the Meridian Campaign. General William T. Sherman occupied Meridian, Mississippi, after General Leonidas Polk evacuated the city, and Union troops destroyed railroads and other resources that supported the Confederate war effort. Although no major combat took place, the campaign gave Sherman an opportunity to develop destructive methods he later used in Georgia and the Carolinas.

On February 1, 1865, Samuel Cooper, Adjutant and Inspector General (CSA) informed Robert E. Lee that the Confederate Senate had confirmed his appointment as general-in-chief of the Armies of the Confederacy.

On May 15, 1861, the Confederate War Department informed newly-appointed Brigadier General Joseph E. Johnston that he was assigned to command the troops near Harpers Ferry, Virginia.

On April 27, 1861, Robert E. Lee ordered Colonel Thomas J. Jackson to take command of Harpers Ferry, Virginia.

On October 28, 1864, CSA Secretary of War James Seddon announced the appointment of William J. Hardee (pictured here) as commander of the Department of South Carolina, Georgia, and Florida.

On June 27, 1862, Confederate General Braxton Bragg issued a message announcing that he was taking permanent command of the Army of the Mississippi.

On November 29, 1863, General Braxton Bragg wrote to General Samuel Cooper, Adjutant and Inspector General of the Confederate Army, asking to be relieved from command of the Army Tennessee.

On June 20, 1862, Confederate President Jefferson Davis informed Braxton Bragg that he (Bragg) was replacing P. G. T. Beauregard as permanent commander of the Western Department.

On December 16, 1863, Confederate President Jefferson Davis appointed General Joseph E. Johnston to command the Army of Tennessee.