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.
On this day in 1863, President Abraham Lincoln signs the final Emancipation Proclamation, which ends slavery in the rebelling states. A preliminary proclamation was issued in September 1862, following the Union victory at the Battle of Antietam in Maryland. The act signaled an important shift in the Unionâs Civil War aims,expanding the goal of the war from reunification to include the eradication of slavery.