Answer: A. Europeans learned more about Islamic thought.
Explanation:
The intellectual development of Europe cannot but be attributed to the influence of the Crusades. The cultural horizons of many Europeans were liberalized widely as a result of their encounter with other cultures, more enlightened than the Western civilization at that time.
This act, signed into law by President Lyndon Johnson on July 2, 1964, prohibited discrimination in public places, provided for the integration of schools and other public facilities, and made employment discrimination illegal. This document was the most sweeping civil rights legislation since Reconstruction.
GDP is known as a lagging indicator.
Unemployment rate is also a lagging indicator.
Inflation is a lagging indicator.
Pretty sure National debt is not considered an economic indicator.