I'm guessing its the fall of China's last dynasty or the fall of Qin Shi. Hope I could help
The quote just saying that he feel like he belong to the human race itself more strongly than any culture/nationality.
One of the main qualities for Greeks was justice, but then
again this had a much wider meaning than it does in English. It meant also
treating people justly and justifiably. In Greco-Roman law the defendant had
the right to guard himself, although deprived of money he was left defending
himself. The Greek city states could be oligarchies or a division of the army,
or a restricted democracy. Rome started as a kingdom and then turn into a
republic – in the first place, aristocratic only but then merchants got voted,
and after much widespread anxiety the people were embodied by the Tribune. Furthermore,
any Roman citizen could vote, a major concern at that period.
