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.
When Brazil abolished slavery in 1888, slavery in the Western Hemisphere was effectively ended. In all but two of these countries, the United States and Haiti, the end of slavery occurred without widespread violence. Peaceful emancipation, then, was not only possible, but was the norm.etween the beginning of the nineteenth century and the outbreak of the Civil War, at least 15 countries in Europe and Central and South America abolished slavery or put it on the path to extinction.