Transatlantic Slave Trade & Black America (1525-Present)
From 1525 to 1866, an estimated 13 million African people were kidnapped from their homes along the West African coast. Confined in inhumane conditions, they were trafficked across the Atlantic to the Americas aboard massive cargo ships.
This forced migration, known as the Middle Passage, killed at least two million people through disease, abuse, or suicide. Mortality rates reached 33 percent on some voyages. Those who survived were subjected to brutal systems of forced labor, enduring extreme violence and dehumanization for the economic benefit of white landowners and European colonial powers.
After the American Revolution ended in 1783, divisions over slavery remained deeply entrenched across the newly formed United States (US). Although the Transatlantic Slave Trade officially ended in 1807, chattel slavery intensified through an expanding domestic market.
Between 1810 and 1860, more than one million enslaved people were forcibly moved from the states in the Upper South to those in the Lower South in a practice commonly known as being “sold down the river.” Enslavers and traffickers made fortunes by treating enslaved people as property to be bought, sold, and speculated on alongside livestock and land. Over half were parents separated from their children, and one third were couples permanently torn apart.
The Emancipation Proclamation took effect in 1863, declaring enslaved people in rebellious Confederate states to be free. Slavery formally ended following the Civil War, which lasted from 1861 to 1865. On July 19, 1865, the last enslaved people in Texas learned of their freedom, a day that came to be known as Juneteenth among newly freed Black Americans.
In the years that followed, Congress passed a series of constitutional amendments which reshaped the nation. In 1865, the Thirteenth Amendment abolished slavery with an exception for criminal punishment. Three years later, the Fourteenth Amendment granted citizenship to those born or naturalized in the US. The Fifteenth Amendment, passed in 1870, extended voting rights to all men regardless of race.
Reconstruction, the post-emancipation period from 1865 to 1877, briefly expanded opportunities for Black Americans before progress was violently reversed. Emancipation also did not end racial oppression. From 1870 through 1964, Jim Crow laws enforced racial segregation in the South with thousands killed in racial terror lynchings.
According to the Equal Justice Initiative (EJI), between 1877 and 1950, at least 4,084 men, women, and children were lynched in 20 states across the US. To escape the violence and discrimination, more than six million Black Americans moved from the South to cities in the North and West between 1916 and 1970. Known as the Great Migration, it reshaped US demographics while draining the Southern agricultural economy of its primary labor force.
Black communities resisted through protest, as well as disciplined and intergenerational organizing rooted in faith, mutual aid, and an unyielding belief in freedom. Everyday people, students, domestic workers, clergy, veterans, and sharecroppers placed their bodies and livelihoods on the line. They boycotted segregated businesses, endured arrests during sit-ins, faced brutal violence on freedom rides, and marched across bridges and through hostile streets demanding full citizenship.
This sustained pressure reshaped federal law, leading to the Civil Rights Act of 1964 and the Voting Rights Act of 1965, landmark measures that dismantled legalized segregation and protected Black political participation. Nonetheless, these laws have been consistently undermined in the decades that followed. In May 2026, the US Supreme Court significantly weakened the Voting Rights Act, targeting protections under Section 2 designed to prevent racial discrimination in voting.
Freedom has never meant full equality. Black Americans continue to face disproportionate incarceration, state violence, and economic and housing barriers rooted in racial exclusion. One example of an enduring discriminatory practice, called redlining, embedded systemic racial inequality into housing markets and municipal policy. Banks denied loans to residents in areas labeled “hazardous,” which were overwhelmingly communities of color, undermining their economic and social stability.
Moreover, while Black children under the age of 17 represent 15 percent of the youth population in the US, they account for 46 percent of those incarcerated, according to The Sentencing Project. These realities reflect the enduring legacy of slavery and segregation that continue to impede the civil and political rights of Black Americans.