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.
Making the world better, one answer at a time. The French abolished slavery during the French Revolution of 1789, Britain made it illegal in 1807 because the British public turned against it. Napoleon revived slavery during the napoleanic wars (enslaving people of Haiti).