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.
Sadly, most people don't know that the first slave ship docked in Jamestown, Va., in August 1619, a year before the pilgrims dropped anchor at Plymouth Rock. And most aren't aware that slavery in this country didn't officially end until Dec. 6, 1865, the day the 13th Amendment to the Constitution was ratified. It didn't end on Jan. 1, 1863, when President Abraham Lincoln issued his Emancipation Proclamation.