The history of slavery spans many cultures, nationalities, and religions from ancient times to the present day. However the social, economic, and legal positions of slaves were vastly different in different systems of slavery in different times and places.
The Stamp Act put a law stating taxes (stamps) had to be put on every article item, from newspapers to a deck of cards to a marriage document.
However, the Sugar Act put a law stating taxes had to be put on imports such as sugar and molasses instead. Additional goods were also taxed such as coffee.