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.
August 1, 1838 - Slavery was abolished in Jamaica. It had been introduced by Spanish settlers 300 years earlier in 1509. August 1, 1944 - Anne Frank penned her last entry into her diary. Three days later, Anne and her family were arrested and sent to Nazi concentration camps.