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.
Abolition of slavery in the United States. The slave trade was abolished in the United States from 1 January 1808. However, some slaving continued on an illegal basis for the next fifty years. One popular subterfuge was to use whaling ships.