question:
Zhejiang, as the heartland of the Jiangnan (Yangtze River Delta), remained the wealthiest area during the Six Dynasties (220 or 222589), Sui, and Tang.
When did the Six Dynasties end?

answer: yes

question:
The Dutch written grammar has simplified over the past 100 years: cases are now mainly used for the pronouns, such as ik (I), mij, me (me), mijn (my), wie (who), wiens (whose: masculine or neuter singular), wier (whose: feminine singular; masculine, feminine or neuter plural).
What part of speech does Dutch mostly use cases for?

answer: yes

question:
From 1809, the Canal de l'Ourcq provided Paris with water from less-polluted rivers to the north-east of the capital.
WHen did the Canal de l'Ourcq start providing Paris with water?

answer: yes

question:
Alluding to the membership of a lodge of operative masons, they relate a mythologised history of the craft, the duties of its grades, and the manner in which oaths of fidelity are to be taken on joining.
What kind of an oath do Masons take when they join?

answer:
yes