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Massachusetts Bay Colony was established in 1629 when King Charles I issued a charter that established the Massachusetts Bay Company and gave the company permission to establish a settlement in New England. Prior to the American Revolution, it became the largest and most powerful British colony in New England and is one of the 13 Original Colonies that declared independence in 1776.

The Massachusetts Government Act was one of five laws enacted by the British Parliament in 1774 in response to the Boston Tea Party. Collectively, the acts are known as the Coercive Acts, or the Intolerable Acts.

The Massachusetts Government Act was one of five laws enacted by the British Parliament in 1774 in response to the Boston Tea Party. Collectively, the acts are known as the Coercive Acts, or the Intolerable Acts.

APUSH Definition — George B. McClellan (1826–1885) was an officer in the United States Army during the Civil War. Although McClellan was popular with his men, he clashed with President Abraham Lincoln. He is most well-known for running against Lincoln in the 1864 Presidential Election as the candidate for the Democratic Party.

Major General George Brinton McClellan, General-in-Chief of all U.S. armies from November 1, 1861 to March 11, 1862, also commanded the Army of the Potomac from July 25, 1861 to November 5, 1862, and was the Democratic Party's candidate in the presidential election of 1864.

John A. McClernand was an American lawyer, Democratic politician, and Union general who Ulysses S. Grant relieved as commander of the Army of Tennessee prior to the surrender of Vicksburg.

Key facts about John A. McClernand, an American lawyer, Democratic politician, and Union general who Ulysses S. Grant relieved as commander of the Army of Tennessee prior to the surrender of Vicksburg.

Major General Alexander McDowell McCook, who served as a divisional and a corps commander with the Army of the Ohio and the Army of the Cumberland, was a member of the “Fighting McCooks,” fifteen family members who served the Union during the American Civil War.

Key facts about Major General Alexander McDowell McCook, who served as a divisional and a corps commander with the Army of the Ohio and the Army of the Cumberland during the American Civil War.

McCulloch v. Maryland is known for shaping the relationship between the United States and individual states by ruling Congress had the authority to establish a national bank, states did not have the power to tax the Federal Government, and Constitutional Sovereignty came from the people.

Famous frontiersman, scout, and Texas Ranger, Benjamin McCulloch was a Confederate brigadier general who was killed at the Battle of Pea Ridge. 

Facts about Confederate General Benjamin McCulloch who died at the Battle of Pea Ridge in 1862.

The Battle of McDowell was fought between the United States of America and the Confederate States of America on May 8, 1862. The outcome of the battle was a Confederate victory.

Irvin McDowell was a prominent Union general during the American Civil War and a career army officer. He commanded the Army of Northeastern Virginia during the First Battle of Bull Run.

APUSH Definition — General Irvin McDowell (1818–1885) was an officer in the United States Army during the Civil War.

Lachlan McIntosh (1725–1806) was an officer in the Continental Army during the American Revolutionary War.

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.