ANSWER:
Crusades, military expeditions, beginning in the late 11th century, that were organized by western European Christians in response to centuries of Muslim wars of expansion. Their objectives were to check the spread of Islam, to retake control of the Holy Land in the eastern Mediterranean, to conquer pagan areas, and to recapture formerly Christian territories;
Cactus Hill site has human remains that have been dated to around 20,000 years ago. Given its location in Virginia shows that human beings had reached America earlier than this. This contradicts the theory that postulates humans came to America from Siberia through the modern day Bring Strait. The theory asserts that at the end of the Ice age humans were able to cross to America through the Beringia land bridge and other means such as canoes and rafts around 10,000 years ago.
"The Roosevelt Corollary" is the best option from the list in terms of what would prevent Japanese intervention in its neighboring island of the Philippines.
The correct answer is <span>They developed math and astronomy to support their religious beliefs.
They used math and astrology to develop calendars that fit their religious beliefs and these were highly advanced for the time and considering their available technology. Based on this they made the famous calendar that predicted the end of the world in 2012.</span>