# September 17, 1862, Battle of Antietam > Explore the Battle of Antietam, the bloodiest single day in American history, and how it halted Lee’s invasion of the North and paved the way for Lincoln’s Emancipation Proclamation. Canonical URL: https://aristotree.com/plain.house0188/september-17-1862-battle-of-antietam Language: en Creator: plain.house0188 Last modified: 2026-10-10T22:16:35.448Z Concepts: 53 Relationships: 85 This is a public, user-curated knowledge graph. Follow the cited sources when verifying claims. ## Concepts ### Ford's Theatre Ford's Theatre is a theater in Washington, D. Topics: instance of: theatre building, country: United States Sources: - https://en.wikipedia.org/wiki/Ford's_Theatre ### Jefferson Davis Jefferson F. Topics: instance of: human, occupation: military officer, occupation: politician, named after: Thomas Jefferson Sources: - https://en.wikipedia.org/wiki/Jefferson_Davis ### Stephen A. Douglas Stephen Arnold Douglas was an American politician and lawyer from Illinois. Topics: instance of: human, occupation: politician, occupation: judge, cause of death: typhoid fever Sources: - https://en.wikipedia.org/wiki/Stephen_A._Douglas ### Abraham Lincoln's second inaugural address Abraham Lincoln delivered his second inaugural address on Saturday, March 4, 1865, during his second inauguration as President of the United States. Topics: instance of: inaugural address of the United States President, part of: second inauguration of Abraham Lincoln, country: United States, country of origin: United States Sources: - https://en.wikipedia.org/wiki/Abraham_Lincoln's_second_inaugural_address ### Lincoln–Douglas debates The Lincoln–Douglas debates were a series of seven debates in 1858 between Abraham Lincoln, the Republican Party candidate for the United States Senate from Illinois, and incumbent Senator Stephen Douglas, the Democratic Party candidate. Topics: instance of: public election, instance of: sequence, country: United States, follows: 1852 and 1853 United States Senate elections Sources: - https://en.wikipedia.org/wiki/Lincoln%E2%80%93Douglas_debates ### Lincoln's House Divided Speech The House Divided Speech was an address given by senatorial candidate and future president of the United States Abraham Lincoln, on June 16, 1858, at what was then the Illinois State Capitol in Springfield, after he had accepted the Illinois Republican Party's nomination as candidate for US senator. Topics: instance of: oration Sources: - https://en.wikipedia.org/wiki/Lincoln's_House_Divided_Speech ### Republican Party (United States) The Republican Party, also known as the Grand Old Party (GOP), is a right-wing populist and neo-nationalist political party in the United States, sitting on the right-wing to far-right of the political spectrum. Topics: instance of: political party, has part(s): Independent Republican, has part(s): Republican In Name Only, country: United States, founder: Whig Party, founder: Free Soil Party Sources: - https://en.wikipedia.org/wiki/Republican_Party_(United_States) ### John Wilkes Booth John Wilkes Booth was an American stage actor and murderer who assassinated United States president Abraham Lincoln at Ford's Theatre in Washington, D. Topics: instance of: human, occupation: actor, occupation: writer, cause of death: gunshot wound Sources: - https://en.wikipedia.org/wiki/John_Wilkes_Booth ### Mary Todd Lincoln Mary Ann Lincoln was First Lady of the United States from 1861 until the assassination of her husband, President Abraham Lincoln, in 1865. Topics: instance of: human, occupation: First Lady Sources: - https://en.wikipedia.org/wiki/Mary_Todd_Lincoln ### Abraham Lincoln The 16th President of the United States who led the country through the American Civil War. Topics: president, union, civil war Sources: - https://en.wikipedia.org/wiki/Abraham_Lincoln ### 1864 United States presidential election Presidential elections were held in the United States on November 8, 1864, near the end of the American Civil War. Topics: instance of: United States presidential election, country: United States, follows: 1860 United States presidential election, followed by: 1868 United States presidential election Sources: - https://en.wikipedia.org/wiki/1864_United_States_presidential_election ### Governor of New Jersey The governor of New Jersey is the head of government of the U. Topics: instance of: governor, part of: State of New Jersey, has part(s): candidate for Governor of New Jersey, country: United States Sources: - https://en.wikipedia.org/wiki/Governor_of_New_Jersey ### Commanding General of the United States Army Commanding General of the United States Army was the title given to the service chief and highest-ranking officer of the United States Army, prior to the establishment of the chief of staff of the United States Army in 1903. Topics: instance of: military rank, subclass of: commanding officer, subclass of: general en jefe, country: United States, followed by: Chief of Staff of the United States Army Sources: - https://en.wikipedia.org/wiki/Commanding_General_of_the_United_States_Army ### Democratic Party (United States) The Democratic Party is a liberal political party in the United States, sitting on the center to center-left of the political spectrum. Topics: instance of: political party, country: United States, founder: Andrew Jackson, founder: Martin Van Buren, follows: Democratic-Republican Party, headquarters location: Washington, D.C. Sources: - https://en.wikipedia.org/wiki/Democratic_Party_(United_States) ### George B. McClellan The Union Major General who commanded the Army of the Potomac during the Maryland Campaign. Topics: general, union, army of the potomac Sources: - https://en.wikipedia.org/wiki/George_B._McClellan ### George Meade George Gordon Meade was an American military officer who served in the United States Army and the Union army as a major general in command of the Army of the Potomac during the American Civil War from 1863 to 1865. Topics: instance of: human, occupation: military personnel, occupation: engineer, cause of death: pneumonia Sources: - https://en.wikipedia.org/wiki/George_Meade ### Army of Virginia The Army of Virginia was organized as a major unit of the Union Army and operated briefly and unsuccessfully in 1862 in the American Civil War. Topics: instance of: major military unit, country: United States Sources: - https://en.wikipedia.org/wiki/Army_of_Virginia ### Joseph Hooker Joseph Hooker was an American Civil War general for the Union, chiefly remembered for his decisive defeat by Confederate general Robert E. Topics: instance of: human, occupation: military officer, occupation: military personnel, cause of death: stroke Sources: - https://en.wikipedia.org/wiki/Joseph_Hooker ### Overland Campaign The Overland Campaign, also known as Grant's Overland Campaign, the Virginia Campaign, and the Wilderness Campaign, was a series of battles fought in Virginia during May and June 1864, towards the end of the American Civil War. Topics: instance of: war, instance of: military campaign, part of: American Civil War, country: United States Sources: - https://en.wikipedia.org/wiki/Overland_Campaign ### Peninsula campaign The Peninsula campaign of the American Civil War was a major Union operation launched in southeastern Virginia from March to July 1862, the first large-scale offensive in the Eastern Theater. Topics: instance of: military campaign, instance of: battle, part of: American Civil War, country: United States Sources: - https://en.wikipedia.org/wiki/Peninsula_campaign ### Army of the Potomac The primary Union field army in the Eastern Theater of the American Civil War. Topics: union, military, civil war Sources: - https://en.wikipedia.org/wiki/Army_of_the_Potomac ### Washington County, Maryland Washington County is located in the U. Topics: instance of: county of Maryland, country: United States, named after: George Washington, headquarters location: Hagerstown Sources: - https://en.wikipedia.org/wiki/Washington_County%2C_Maryland ### Potomac River The Potomac River is in the Mid-Atlantic region of the United States and flows from the Potomac Highlands in West Virginia to the Chesapeake Bay in Maryland. Topics: instance of: river, instance of: stream, country: United States, named after: Patawomeck Sources: - https://en.wikipedia.org/wiki/Potomac_River ### Antietam National Battlefield Antietam National Battlefield is a National Park Service-protected area along Antietam Creek in Sharpsburg, Washington County, northwestern Maryland. Topics: instance of: National Battlefield, country: United States, operator: National Park Service Sources: - https://en.wikipedia.org/wiki/Antietam_National_Battlefield ### Sharpsburg, Maryland The town in Washington County, Maryland, where the Battle of Antietam took place. Topics: geography, maryland, battlefield Sources: - https://en.wikipedia.org/wiki/Sharpsburg%2C_Maryland ### Military intelligence Military intelligence is a military discipline that uses information collection and analysis approaches to provide guidance and direction to assist commanders in their decisions. Topics: subclass of: espionage, subclass of: intelligence assessment Sources: - https://en.wikipedia.org/wiki/Military_intelligence ### Cigar A cigar is a rolled bundle of dried and fermented tobacco leaves made to be smoked. Topics: subclass of: tobacco product Sources: - https://en.wikipedia.org/wiki/Cigar ### Daniel Harvey Hill Daniel Harvey Hill, commonly known as D. Topics: instance of: human, occupation: university teacher Sources: - https://en.wikipedia.org/wiki/Daniel_Harvey_Hill ### John B. Gordon John Brown Gordon was an American politician, Confederate States Army general, attorney, slaveowner and planter. Topics: instance of: human, occupation: politician Sources: - https://en.wikipedia.org/wiki/John_B._Gordon ### Special Order 191 A set of orders written by Robert E. Lee that detailed the movements of his army, which were lost and subsequently found by Union soldiers. Topics: intelligence, robert e. lee, civil war Sources: - https://en.wikipedia.org/wiki/Special_Order_191 ### Washington and Lee University Washington and Lee University is a private liberal arts college in Lexington, Virginia, United States. Topics: instance of: private university, instance of: private not-for-profit educational institution, country: United States, named after: George Washington, named after: Robert E. Lee Sources: - https://en.wikipedia.org/wiki/Washington_and_Lee_University ### Mexican–American War The Mexican–American War, also known in the United States as the Mexican War and in Mexico as the United States intervention in Mexico, was an invasion of Mexico by the United States. Topics: instance of: war, part of: Mexico–United States relations, has part(s): First Battle of Tabasco, has part(s): Treaty of Guadalupe Hidalgo, country: United States Sources: - https://en.wikipedia.org/wiki/Mexican%E2%80%93American_War ### United States Military Academy The United States Military Academy (USMA), commonly known as West Point, is a United States service academy in West Point, New York, that educates cadets for service as commissioned officers in the United States Army. Topics: instance of: military academy, instance of: military museum, has part(s): Jefferson Hall, has part(s): West Point Cadet Chapel, country: United States, founder: Thomas Jefferson Sources: - https://en.wikipedia.org/wiki/United_States_Military_Academy ### Union Army land force that fought for the Union during the American Civil War Sources: - https://en.wikipedia.org/wiki/Union_army ### Battle of Appomattox Court House The Battle of Appomattox Court House, fought in Appomattox County, Virginia, on the morning of April 9, 1865, was one of the last, and ultimately one of the most consequential, battles of the American Civil War (1861–1865). Topics: instance of: battle, part of: American Civil War, country: United States Sources: - https://en.wikipedia.org/wiki/Battle_of_Appomattox_Court_House ### Ulysses S. Grant Ulysses S. Topics: instance of: human, occupation: explorer, occupation: writer, cause of death: laryngeal cancer Sources: - https://en.wikipedia.org/wiki/Ulysses_S._Grant ### Battle of Gettysburg The Battle of Gettysburg was fought in the American Civil War between the Union and Confederate armies in and around Gettysburg, Pennsylvania. Topics: instance of: battle, part of: American Civil War, country: United States Sources: - https://en.wikipedia.org/wiki/Battle_of_Gettysburg ### Robert E. Lee The commander of the Confederate Army of Northern Virginia who led the invasion of Maryland. Topics: general, confederate, army of northern virginia Sources: - https://en.wikipedia.org/wiki/Robert_E._Lee ### Dunker Church The Dunker Church is a historic American Civil War battlefield site, notable for its pivotal and fiercely contested fighting during the Battle of Antietam on September 17, 1862, one of the most significant battles of the Civil War. Topics: instance of: architectural reconstruction, instance of: church building, country: United States, operator: National Park Service Sources: - https://en.wikipedia.org/wiki/Dunker_Church ### Battle of South Mountain The Battle of South Mountain, known in several early Southern accounts as the Battle of Boonsboro Gap, was fought on September 14, 1862, as part of the Maryland campaign of the American Civil War. Topics: instance of: battle, part of: American Civil War, part of: Maryland in the American Civil War, country: United States Sources: - https://en.wikipedia.org/wiki/Battle_of_South_Mountain ### Army of Northern Virginia The Army of Northern Virginia was a field army of the Confederate States Army in the eastern theater of the American Civil War. Topics: instance of: field army, part of: Confederate States Army, country: Confederate States of America, named after: Northern Virginia Sources: - https://en.wikipedia.org/wiki/Army_of_Northern_Virginia ### Ambrose Burnside Ambrose Everts Burnside was an American army officer and politician who became a senior Union general in the American Civil War and a three-time governor of Rhode Island, as well as being an inventor and industrialist. Topics: instance of: human, occupation: politician, occupation: military officer, cause of death: angina pectoris Sources: - https://en.wikipedia.org/wiki/Ambrose_Burnside ### Burnside's Bridge Burnside's Bridge is a landmark on the U. Topics: instance of: bridge, country: United States, named after: Ambrose Burnside Sources: - https://en.wikipedia.org/wiki/Burnside's_Bridge ### Bloody Lane The Bloody Lane, also known as the Sunken Road, is a preserved section of the Antietam National Battlefield in Maryland. Topics: instance of: landmark, country: United States Sources: - https://en.wikipedia.org/wiki/Bloody_Lane ### Maryland campaign The Maryland campaign occurred September 4–20, 1862, during the American Civil War. Topics: instance of: invasion, instance of: military campaign, part of: American Civil War, part of: Maryland in the American Civil War, country: United States Sources: - https://en.wikipedia.org/wiki/Maryland_campaign ### Battle of Antietam A major American Civil War engagement fought near Sharpsburg, Maryland, between Union and Confederate forces. Topics: civil war, maryland, 1862 Sources: - https://en.wikipedia.org/wiki/Battle_of_Antietam ### Contraband (American Civil War) "Contraband" was a term commonly used in the US military during the American Civil War to describe a new status for people who escaped slavery or those who affiliated with Union forces. Sources: - https://en.wikipedia.org/wiki/Contraband_(American_Civil_War) ### Gettysburg Address The Gettysburg Address is a dedication speech delivered by Abraham Lincoln, the 16th U. Topics: instance of: oration, part of: American Civil War, country: United States, named after: Gettysburg Sources: - https://en.wikipedia.org/wiki/Gettysburg_Address ### William H. Seward William Henry Seward was an American politician who served as United States Secretary of State from 1861 to 1869 and earlier served as governor of New York and as a United States senator. Topics: instance of: human, occupation: politician, occupation: lawyer, cause of death: respiratory failure Sources: - https://en.wikipedia.org/wiki/William_H._Seward ### United States Colored Troops United States Colored Troops (USCT) were Union Army regiments during the American Civil War that primarily comprised African Americans, with soldiers from other ethnic groups also serving in USCT units. Topics: instance of: military branch, country: United States Sources: - https://en.wikipedia.org/wiki/United_States_Colored_Troops ### Confederate States of America The Confederate States of America (CSA), also known as the Confederate States or the Confederacy, was a republic in the Southern United States from 1861 to 1865, unrecognized as a sovereign nation by either foreign governments or the United States. Topics: instance of: historical unrecognized state, instance of: constitutional republic, part of: North America, country: Confederate States of America, named after: Americas Sources: - https://en.wikipedia.org/wiki/Confederate_States_of_America ### Thirteenth Amendment to the United States Constitution The Thirteenth Amendment to the United States Constitution made slavery and involuntary servitude illegal, except as punishment for a crime. Topics: instance of: amendment to the United States Constitution, part of: United States Constitution, part of: Reconstruction Amendments, has part(s): Enforcement Clause Sources: - https://en.wikipedia.org/wiki/Thirteenth_Amendment_to_the_United_States_Constitution ### Emancipation Proclamation An executive order issued by Abraham Lincoln that declared all enslaved people in Confederate-held territory to be free. Topics: abraham lincoln, slavery, civil war Sources: - https://en.wikipedia.org/wiki/Emancipation_Proclamation ## Relationships - Abraham Lincoln — related_to → Stephen A. Douglas: primary political rival - Abraham Lincoln — related_to → Abraham Lincoln's second inaugural address: key presidential oration - Abraham Lincoln — related_to → Lincoln–Douglas debates: pre-presidential political contest - Abraham Lincoln — related_to → Lincoln's House Divided Speech: defining political rhetoric - Abraham Lincoln — related_to → Republican Party (United States): political party affiliation - Abraham Lincoln — related_to → Ford's Theatre: site of presidential assassination - Abraham Lincoln — related_to → John Wilkes Booth: assassin of the president - Abraham Lincoln — related_to → Mary Todd Lincoln: spouse and political partner - Abraham Lincoln — related_to → Jefferson Davis: wartime counterpart - Abraham Lincoln — related_to → Ulysses S. Grant: commander of the Union Army - Abraham Lincoln — related_to → Thirteenth Amendment to the United States Constitution: constitutional goal of his presidency - Abraham Lincoln — related_to → Gettysburg Address: oration delivered by Lincoln - George B. McClellan — related_to → 1864 United States presidential election: unsuccessful presidential candidate - George B. McClellan — related_to → Governor of New Jersey: held political executive office - George B. McClellan — related_to → Commanding General of the United States Army: held military leadership position - George B. McClellan — related_to → Democratic Party (United States): political party affiliation - George B. McClellan — related_to → Emancipation Proclamation: political consequence of military action - George B. McClellan — related_to → Abraham Lincoln: strained professional and political relationship - Army of the Potomac — related_to → George Meade: commander during Gettysburg - Army of the Potomac — related_to → Army of Virginia: short-lived organizational predecessor - Army of the Potomac — related_to → Joseph Hooker: commander during Chancellorsville - Army of the Potomac — related_to → Overland Campaign: final strategic offensive - Army of the Potomac — related_to → Ulysses S. Grant: final commanding general - Army of the Potomac — related_to → Battle of Gettysburg: decisive turning point - Army of the Potomac — related_to → Peninsula campaign: major operational failure - Army of the Potomac — related_to → Army of Northern Virginia: primary tactical adversary - Army of the Potomac — related_to → Emancipation Proclamation: political consequence of victory - Army of the Potomac — related_to → Abraham Lincoln: ultimate civilian authority - Army of the Potomac — related_to → George B. McClellan: founding commander - Sharpsburg, Maryland — related_to → Burnside's Bridge: site of a critical tactical engagement - Sharpsburg, Maryland — related_to → Maryland campaign: strategic military operation centered on the town - Sharpsburg, Maryland — related_to → Dunker Church: key tactical landmark during the battle - Sharpsburg, Maryland — related_to → Washington County, Maryland: administrative jurisdiction containing the town - Sharpsburg, Maryland — related_to → Potomac River: defines the geographic context of the Maryland Campaign - Sharpsburg, Maryland — related_to → Antietam National Battlefield: preserves the site of the 1862 conflict - Sharpsburg, Maryland — related_to → Abraham Lincoln: political leader who used the battle to issue the Emancipation Proclama... - Sharpsburg, Maryland — related_to → Special Order 191: intelligence document that influenced the battle's location - Sharpsburg, Maryland — related_to → Army of the Potomac: military force that fought at the town - Sharpsburg, Maryland — related_to → George B. McClellan: Union commander who engaged Confederate forces at the town - Sharpsburg, Maryland — related_to → Robert E. Lee: commander who chose the town for his defensive stand - Special Order 191 — related_to → Military intelligence: Strategic impact of the document's capture - Special Order 191 — related_to → Cigar: Physical object used to conceal the order - Special Order 191 — related_to → Battle of South Mountain: Immediate tactical consequence of the order's discovery - Special Order 191 — related_to → Daniel Harvey Hill: Recipient of the order whose copy was lost - Special Order 191 — related_to → John B. Gordon: Officer who discovered the lost document - Special Order 191 — related_to → Maryland campaign: Operational context for the issuance of the order - Special Order 191 — related_to → Army of Northern Virginia: Primary military force commanded by the author of the order - Special Order 191 — related_to → Emancipation Proclamation: Political consequence of the battle resulting from the order - Special Order 191 — related_to → George B. McClellan: Recipient of the captured intelligence - Robert E. Lee — related_to → Washington and Lee University: post-war academic leadership - Robert E. Lee — related_to → Mexican–American War: formative military experience - Robert E. Lee — related_to → United States Military Academy: alma mater and early career influence - Robert E. Lee — related_to → Jefferson Davis: political superior and commander-in-chief - Robert E. Lee — related_to → Battle of Appomattox Court House: site of final surrender - Robert E. Lee — related_to → Ulysses S. Grant: final military adversary - Robert E. Lee — related_to → Battle of Gettysburg: pivotal military defeat and turning point - Robert E. Lee — related_to → Army of Northern Virginia: primary command during the American Civil War - Robert E. Lee — related_to → Emancipation Proclamation: strategic consequence of the Battle of Antietam - Robert E. Lee — related_to → Army of the Potomac: primary Union military opponent - Robert E. Lee — related_to → Special Order 191: critical intelligence failure - Robert E. Lee — related_to → Abraham Lincoln: political adversary and commander-in-chief of the Union - Robert E. Lee — related_to → George B. McClellan: primary opponent in the Peninsula Campaign - Battle of Antietam — has_participant → Confederate States of America: Confederate States of America participated in Battle of Antietam - Battle of Antietam — has_participant → Union Army: Union Army participated in Battle of Antietam - Battle of Antietam — related_to → Dunker Church: Prominent landmark and focal point of combat - Battle of Antietam — related_to → Battle of South Mountain: Precursor engagement to the battle - Battle of Antietam — related_to → Army of Northern Virginia: Primary Confederate combatant force - Battle of Antietam — related_to → Ambrose Burnside: Commanded a major wing of the Union forces - Battle of Antietam — related_to → Burnside's Bridge: Key tactical location during the battle - Battle of Antietam — related_to → Bloody Lane: Key tactical location during the battle - Battle of Antietam — related_to → Maryland campaign: Strategic context of the battle - Battle of Antietam — related_to → Abraham Lincoln: Political leader overseeing the war effort - Emancipation Proclamation — related_to → Contraband (American Civil War): Precursor legal status - Emancipation Proclamation — related_to → Gettysburg Address: Thematic and political successor - Emancipation Proclamation — related_to → William H. Seward: Key administrative advisor - Emancipation Proclamation — related_to → United States Colored Troops: Direct consequence of the policy - Emancipation Proclamation — related_to → Confederate States of America: Target of the executive order - Emancipation Proclamation — related_to → Thirteenth Amendment to the United States Constitution: Constitutional successor and codification - Army of the Potomac — has_participant → Battle of Antietam: The army fought in the battle. - Abraham Lincoln — related_to → Emancipation Proclamation: Lincoln issued the proclamation. - Special Order 191 — prerequisite → Battle of Antietam: The discovery of the order influenced the battle. - Battle of Antietam — located_at → Sharpsburg, Maryland: The battle occurred in Sharpsburg. - Battle of Antietam — causes → Emancipation Proclamation: The battle provided the political opening for the proclamation. - Robert E. Lee — has_participant → Battle of Antietam: Lee commanded the Confederate forces. - George B. McClellan — has_participant → Battle of Antietam: McClellan commanded the Union forces.