Context: The major architectural undertakings were the buildings of abbeys and cathedrals. From about 900 CE onwards, the movements of both clerics and tradesmen carried architectural knowledge across Europe, resulting in the pan-European styles Romanesque and Gothic.

Question: What type of buildings were took the most effort to build?
Answer: abbeys and cathedrals.

Question: What were the most important buildings of the time?
Answer: abbeys and cathedrals

Question: What two groups spread knowledge of architecture in Europe?
Answer: clerics and tradesmen

Question: What style is Gothic?
Answer: pan-European

Question: What is another pan-European style?
Answer: Romanesque

Question: When did the clerics and tradesmen start spreading architectural information?
Answer: 900 CE onwards

Question:  What type of buildings were took the least effort to build?
Answer: Unanswerable

Question:  What were the least important buildings of the time?
Answer: Unanswerable

Question:  What three groups spread knowledge of architecture in Europe?
Answer: Unanswerable

Question:  What style is pre-Gothic?
Answer: Unanswerable

Question:  What is another pre-European style?
Answer: Unanswerable