What is the most value export from the US in 1860?

In 1860, the most valuable export from the United States was cotton. The thriving cotton industry, largely supported by slave labor in the Southern states, played a crucial role in the U.S. economy and accounted for a significant portion of the nation's exports. Cotton was in high demand both domestically and internationally, particularly in Europe, where it fueled the textile industry. This economic reliance on cotton contributed to the tensions leading up to the Civil War.