About the time Cromwell was leading army of artisans and peasants against the English Parliament, the whole area of cultivated land within the limits of the Manchu Empire was130 million acres.

• 大约在克伦威尔领导工匠和农民的军队同英国国会作战的时期，清帝国疆域内的全部耕地有八亿亩，人口则有七千万，土地问题显然已到了危机关头。