Invention of the Cotton Gin (1793)

CTL-E-5406 · Event · other · 1793

VERIFIED evidence grade of this record

In 1793, working at Mulberry Grove plantation near Savannah, Georgia, Eli Whitney built a working model of the cotton gin, a machine that used rotating teeth and brushes to pull the sticky seeds from short-staple cotton fiber. He applied for a patent on October 28, 1793; it was granted on March 14, 1794. The gin let one worker clean roughly fifty times the cotton possible by hand, and it transformed the American South: short-staple cotton, previously unprofitable, became the region's dominant cash crop, and United States cotton production and exports climbed for the rest of the century. The machine's efficiency ran on enslaved labor — demand for enslaved field workers surged with every new acre planted, and the enslaved population of the United States grew from about 700,000 in 1790 to nearly 4 million by 1860. CTL records the gin under the intake timeline's 'Rise of the Cotton Industry' stop, with the audit's correction: 1793 is the year of the machine, and the machine is what made the rise — and slavery's expansion — possible.

The record

• Also known as: Cotton Gin, Rise of the Cotton Industry

Notes

Statistics: Patent: applied October 28, 1793, granted March 14, 1794 (Wikipedia, 'Cotton gin'). Audit verdict on the paste's stop #2: IMPRECISE as printed — 'Rise of the Cotton Industry' is anchored to the gin's 1793 invention; this record names the machine, per the correction noted in the intake audit. · Curator's Judgment: DRAFT — for founder review: A small machine with wooden teeth redrew the map of American slavery. The record refuses the soft version — an invention story — and states the mechanism plainly: the gin did not just process cotton, it processed people into a labor market. That is why it belongs in a Black cultural graph, filed under its consequences. · Photo slot: CLEARED CANDIDATE — Wikimedia Commons File:Patent for Cotton Gin (1794) - hi res.jpg (Whitney's 1794 cotton gin patent drawing), Public domain, license verified from Commons API metadata on 2026-10-15; not downloaded — visual pass follows merge per standing pattern.

Sources

• Wikipedia, 'Cotton gin' — supports: prototype in April 1793, patent applied for October 28, 1793 and granted March 14, 1794 (the audit's anchor for the 1793 date)
• U.S. Census historical counts, as summarized in standard references — supports: enslaved population of roughly 700,000 in 1790 rising to nearly 4 million by 1860 (primary source)
• National Museum of American History, Smithsonian Institution, cotton gin collection notes — supports: the gin's roughly fiftyfold increase in cleaning speed and its effect on cotton production

Record CTL-E-5406 · CultureTechLens Knowledge Graph · evidence grade: VERIFIED · 3 sources (1 primary) · CTL research: BCI-001, RELP-001.
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