The answer to the question is the letter "C" which is "Europeans learned about science and medicine from the Islamic world". Holy Land remained under control of Christian and Muslim is only in conflict with other religions. Jews and Crusaders have the same religious practices and structure.
To help conceal the chaos in Catholic and Protestant churches
It's C
The north had the money, the people, and the industrial power to branch out the railroad networks. So following markets and money. The north built networks to the west.
The south in contrast was did not have the capacity to construct as much railroads as the north did so therefore there was less western expansion. As well the south had more interests building canals and shipping product of the states to England.
It started the spark of the industrial revolution
Racial policies were mostly those that dealt with the issue of slavery at first and later with the issue of civil rights. Court's decision to have the anti-slavery acts and to later have the civil war acts impacted African-Americans a lot. A case when it comes to ethnicity is for example the court's decision that affirmative action can often be treated as positive racism and that such laws and policies have to pass strict scrutiny and be analyzed to prevent discrimination. Religious groups often had court problems because of issues regarding homosexuality or abortions in which it was established that religious groups have all the freedom to believe what they want but same-sex marriages and abortions can be provided to all people regardless of religion.
