question: 
The term "Late Middle Ages" refers to one of the three periods of the Middle Ages, along with the Early Middle Ages and the High Middle Ages.
What is the name for the division of the periods of history introduced by Bruni?

answer: no


question: 
On 21 August 1950, shortly after the invasion of South Korea, Truman announced Walter Bedell Smith as the new Director of the CIA to correct what was seen as a grave failure of Intelligence.[clarification needed]
What president announced the new CIA director?

answer: yes


question: 
Over 98% of sprayed insecticides and 95% of herbicides reach a destination other than their target species, including non-target species, air, water and soil.
What is affected when pesticides don't reach their target?

answer: yes


question: 
However, the massive migration of northern Han Chinese into Fujian region mainly occurred after the Disaster of Yongjia.
What disaster caused a massive migration in the Fujiian region?

answer:
yes