# After the African trade ban takes effect, the domestic slave trade continues under Jefferson's presidency

Date: 1808

## The fact

On 1 January 1808 the federal ban on importing enslaved Africans took effect. The domestic trade among states did not close. Jefferson's administration enforced the ocean ban unevenly and left the internal market standing. The instrument stored here is that remaining market, not the signing of the import act. Thomas Jefferson's documented role is: He signed the import ban. He did not sign a domestic-trade ban. Markets in Richmond and the West kept moving people.

## Context

The improving import-act row is the statute. This stores the hole. Sharing enforcement with customs collectors is required. Louisiana's plantation belt is part of the demand. The setting of After the African trade ban takes effect, the domestic slave trade continues under Jefferson's presidency is the public file around 1808-01-01. Shared offices, unnamed crews, printers, or later editors may appear without becoming this instrument. Driver [income-inequality](/drivers/income-inequality) is attached because the significance names a mechanism from this act, not because a standing list needed coverage.

## Evidence and sources

Official locator: National Archives — Act Prohibiting Importation of Slaves at https://www.archives.gov/milestone-documents/act-prohibiting-import-of-slaves (U.S. National Archives). Independent locator: Monticello — Jefferson and the slave trade at https://www.monticello.org/slavery/jefferson-slavery/ (Thomas Jefferson Foundation). Official carrier: National Archives — Act Prohibiting Importation of Slaves (https://www.archives.gov/milestone-documents/act-prohibiting-import-of-slaves; U.S. National Archives). Independent carrier: Monticello — Jefferson and the slave trade (https://www.monticello.org/slavery/jefferson-slavery/; Thomas Jefferson Foundation).

Official or archival record: National Archives — Act Prohibiting Importation of Slaves (https://www.archives.gov/milestone-documents/act-prohibiting-import-of-slaves; U.S. National Archives).

## Significance

Worsening path from After the African trade ban takes effect, the domestic slave trade continues under Jefferson's presidency on 1808-01-01. Closing the ocean trade while leaving the internal market open is an inequality path, twin of the import-act row, not a duplicate statute. The welfare reading on this path is worsening.

If a number is not in the two records named above, it is not supplied here.

## What is established and what is not

Established: a sourced public record of After the African trade ban takes effect, the domestic slave trade continues under Jefferson's presidency under 1808-01-01 for Thomas Jefferson. Established: a sourced public record of After the African trade ban takes effect, the domestic slave trade continues under Jefferson's presidency under 1808-01-01.

Confidence is stated on the impact path, not hidden in adjectives. Do not merge with the March 1807 signing. Two paths: ocean ban versus internal market. Mixed effects of After the African trade ban takes effect, the domestic slave trade continues under Jefferson's presidency are separate paths.

Later competitions, monuments, translations, UNESCO listings, museums, and adaptations are not converted into extra lifetime acts.

The attached driver is income-inequality. The welfare reading used in this dossier is worsening. That reading is an impact-path choice, not a property stored on the Fact itself.

Shared responsibility is part of After the African trade ban takes effect, the domestic slave trade continues under Jefferson's presidency. Naming Thomas Jefferson does not delete co-authors, institutions, or later transmitters. The lag from 1808-01-01 to any measured indicator is not treated as zero. Alternative explanations — weather, other armies, later statutes, or independent cultural change — remain live where the sources do not close them.

## People

- Thomas Jefferson: https://factrail.ai/people/thomas-jefferson

## Drivers

- Income Inequality: https://factrail.ai/drivers/income-inequality

## Sources

- https://www.archives.gov/milestone-documents/act-prohibiting-import-of-slaves
- https://www.monticello.org/slavery/jefferson-slavery/

## Methodology

https://factrail.ai/methodology

Canonical: https://factrail.ai/facts/tj-domestic-trade-1808