The period that followed Alexander the Great is the Hellenistic Period.
Quakers believed that slavery was wrong and many hid escaped slaves into the underground railroad
If you mean the speech to the Virginia Convention, then he builds ethos through religious passion. He portrays himself as a faithful Christian who is fighting for God. The allusion to the Biblical motif of light is the equivalent of fighting for God's truth.
Google is a good resource ;)) have a gn