A catalytic converter is a device that uses a catalyst to convert three harmful compounds in car exhaust into harmless compounds. The three harmful compounds are: 1  Hydrocarbons (in the form of unburned gasoline).
Answers.comÂ® is making the world better one answer at a time. Slavery ended permanently in Louisiana in 1865. The end of slavery was a direct result of the passage of the Thirteenth Amendment to the Constitution.
Louisiana and the Port of New Orleans were returned to Napoleonic France by secret agreement in 1800. By 1803, Napoleon sold the territory to the United States. In 1803, some eight thousand people lived in the Port of New Orleans, half of them white.