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1500s                                                                 Spanish people brought African slaves to America

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1500s                                                                 Spanish people brought African slaves to America

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The Spanish introduced the use of African slave labor in the Americas before any other Europeans.

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1588                                                                                           Slavery in Argentina

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1588                                                                                           Slavery in Argentina

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Slavery in what is now Argentina, began mainly in Buenos Aires and the Río de la Plata region

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1619                                                                                              Slavery in the USA

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1619                                                                                              Slavery in the USA

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First American slaves came to the USA. Slavery lasted for almost 250 years.

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1684                                                                  First ship on enslaved Africans

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1684                                                                  First ship on enslaved Africans

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A ship with slaves from Africa arrived in North America.

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1808                                                                           US bans the importation of slaves

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1808                                                                           US bans the importation of slaves

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The US Congress officially prohibited the importation of enslaved Africans.

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1810                                                               About 1.2 million people were slaves in USA

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1810                                                               About 1.2 million people were slaves in USA

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Leaders like Thomas Jefferson and George Washington owned slaves, but often felt uneasy about it.

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1820                                                                                     Missouri compromise

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1820                                                                                     Missouri compromise

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Slavery was allowed in Missouri and Arkansas, but banned in the north and west of Missouri.

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1830                                                                      Tariff dispute and nullification crisis

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1830                                                                      Tariff dispute and nullification crisis

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North and South clashed over tariffs. South claimed that states could nullify federal laws.

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1846                                                                                                Oregon Treaty

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1846                                                                                                Oregon Treaty

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US and Britain divided Oregon territory.

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1848                                                                                   US took land from Mexico

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1848                                                                                   US took land from Mexico

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US gained land from Mexico after the Mexican-American War (Treaty of Guadalupe Hidalgo)

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1850                                                            Compromise of 1850 - Fugitive Slave Act

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1850                                                            Compromise of 1850 - Fugitive Slave Act

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California enters as a free state, other territories choose slavery themselves and a new law strengthened the capture of escaped slaves.

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1853                                                                     Slavery officially ended in Argentina

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1853                                                                     Slavery officially ended in Argentina

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Argentina's new Constitution officially abolished slavery nationwide, building on earlier provincial laws.

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1854                                                                 Kansas-Nebraska Act repealed the Missouri Compromise

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1854                                                                 Kansas-Nebraska Act repealed the Missouri Compromise

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Kansas could decide if they accepted slavery or not. It caused violent clashes known as “Bleeding Kansas.”

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1857–1858                                                                             The Dred Scott Case

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1857–1858                                                                             The Dred Scott Case

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The Supreme Court ruled that slaves were not free even in free states; implicating that slavery could exist everywhere.

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1861                                                                Abraham Lincoln becomes President and The Confederate States of America is formed.

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1861                                                                Abraham Lincoln becomes President and The Confederate States of America is formed.

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Abraham Lincoln, against slavery expansion, became President. Eleven Southern states seceded and formed the Confederate States of America. Despite arguments about states’ rights, slavery was at the core of secession and the conflict.

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1862                                                             The Homestead Act and The Morrill Land-Grant Act 

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1862                                                             The Homestead Act and The Morrill Land-Grant Act 

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The Homestead Act is passed, encouraging the settlement of the West by giving free land to farmers. The Morrill Land-Grant Act is enacted, financing agricultural and technical universities.

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1863                                                                   The National Bank Act and The Emancipation Proclamation

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1863                                                                   The National Bank Act and The Emancipation Proclamation

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The first federal income tax and issuance of Greenback currency are introduced. It lead the foundation for a national financial system.

The Emancipation Proclamation is issued. Slaves in Confederate territories were declared free; shift in war aimed to abolition.

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1864                                                            Capture of Union Forces and Lincoln's reelection

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1864                                                            Capture of Union Forces and Lincoln's reelection

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Union forces were captured in Atlanta, which boosted Northern morale and helped Lincoln secure reelection that same year. Lincoln was reelected President, ensuring the continuation of the Union’s war effort.

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1860s                                                                   Consequences of Civil War

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1860s                                                                   Consequences of Civil War

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Introduction of modern warfare technologies (rifles, early machine guns); the widespread of photography changed how the public experienced war, high casualties influenced the national mourning culture and Gettysburg Address promoted a “new birth of freedom.”

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1865                                                                                              After the War

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1865                                                                                              After the War

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Federal government's role expanded: Lincoln used executive power to unify the country and federal acts strengthened ties between states, ushering in a centralized, industrial nation.