New technologies and ideas were introduced to Europe as a result of the Crusades. Some of these technologie and ideas included... a)Algebra, the astrolabe, and Arabic numerals.
b)Silk, spices, gold, and jewels.
c)Christianity, Arabic numerals, the astrolabe.
d)Silk, algebra, geometry, maps.

Write two paragraphs to explain how the cold war changed after the 1960s. first, identify the ways it changed during leonid brezhnev's leadership in the 1970s. then, explain how the cold war changed when ronald reagan was in office in the early 1980s. include supporting facts and details from the text in your response.

Which of these events was a severe setback for the u. s. war effort in the pacific?

99 points explain the causes and effects of the japanese bombing of pearl harbor in 1941. make sure to explain 3 causes and 3 effect in detail.