Around 6 million Jewish people were killed.
Sources such as diaries though not very reliable can be used if there are a large amount of them showing the same date and event. Historical books written about the event especially those closer to the time would be able to help determine that the date is accurate as well.
Answer:
The only religion recognized in Middle Ages Europe was Christianity and specifically Catholicism. ... Religious institutors including the Church and the monasteries became wealthy and influential given the fact that the state allocated a significant budget for religious activitiesThe Catholic Church in Europe had a heavy influence during the High Middle Ages, the period from about 1000 to 1300 C.E. The Church was the center of life in medieval western Europe. ... During the Middle Ages, the Church was a daily presence from birth to death. It provided education and helped the poor and sick.
Explanation:
REDDIT HAS GOOD INFORMATION!!!!!
If the choices were;
a. assisting the poor
b. the economy
c. technology
d. religious toleration
The answer quite obviously would be technology. Hope it helped..