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.
The first african slaves were brought over on August 20th, 1619, and slavery wasn't abolished until December 6, 1865 when the thirteenth amendment was passed, I wouldn't say that's exactly when slavery ended but that is the timeline. meaning slavery lasted for 246 years.