The minimum age for a member of the House of Representatives is 25 years old.
There was no significance of Rappe of Nanking. they just want to show what power they though they had.
The answer is: Runners allowed villages and cities throughout the empire to communicate quick with rulers far away.
Hope this helps!:)
Self-report data asks respondents to reveal illegal activity in which they have been involved, to which they are able to plead the 5th in order to not incriminate themselves, the risk in which being they place automatic suspicion upon themselves