Roman slaves
a. rarely rebelled, due to the fair treatment they received.
b. were never involved in agriculture but only in manufacturing enterprises.
c. made up well over half the population of the empire.
d. received their freedom as reward for the military assistance at the battle of actium.
e. staged a number of massive rebellions, the largest led by spartacus in 71
b. c.e.

labor leaders and organizations had the power to demand it.

explanation:

workers got a five-day workweek because the bcea protects and respect the rights of the employees. labor leaders and other groups demanded it.

john smith was the first englishman to sail around the world. francis bacon served as attorney general and lord chancellor of england. he took up aristotelian ideas, arguing for an empirical, inductive approach, known as the scientific method, which is the foundation of modern scientific inquiry.