I want to know the answer to the following question:
What does Israel argue Western civilization was based on until the 1650s?
All the background I'm provided with is that "He instead focuses on the history of ideas in the period from 1650 to the end of the 18th century, and claims that it was the ideas themselves that caused the change that eventually led to the revolutions of the latter half of the 18th century and the early 19th century.". Is that enough to answer the question?