The stamp act was when Parliament imposed a new tax on all American colonists and required them to pay a tax for on every piece of printed paper they used like legal documents, licences, newspapers, and even playing cards. They all had taxes included with them
Alexander Hamilton Stephens is the man you are looking for. I know this because he was the governor of Georgia from 1882-1883. After 4 months of being Governor he died in office on March 4, 1883.
The term for young people that commit crimes are young offenders
MERCOSUR is an abbreviation of "Mercado Comun del Sur": common market of the South America: most of the eastern South American coutries are members of this common market.
It's a trade block of countries in South America which promotes free trade and free movement of people.