On June 19, 1862, President Abraham Lincoln signed the
Territorial Slavery Act, officially outlawing slavery in all current and future U.S. federal territories. [
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This pivotal legislation fulfilled a key 1860 campaign promise. Congress passed the act to halt the expansion of slavery into the American West. The law's language, stating that "there shall be neither slavery nor involuntary servitude in any of the Territories of the United States," was modeled after the 1787 Northwest Ordinance. [
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This act directly impacted vast areas of land that were not yet states. This included the future states of: [
1]
- Washington, Oregon, and Idaho
- Nevada, Utah, and Arizona
- New Mexico and Colorado
- Wyoming, Montana, North Dakota, South Dakota, and Nebraska [1]
This sweeping prohibition in the federal territories was enacted just two months after Congress passed the
District of Columbia Compensated Emancipation Act. That earlier act officially abolished slavery in the nation's capital on April 16, 1862. Together, these acts laid the legislative groundwork for the
Emancipation Proclamation and the eventual ratification of the
Thirteenth Amendment. [
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If you want to know more about the timeline leading up to emancipation, let me know if you would like to explore:
- The text of the Territorial Slavery Act of 1862
- The impact of the District of Columbia Emancipation Act 1862
- The transition to the Thirteenth Amendment