each of a series of medieval military expeditions made by Europeans to recover the Holy Land from the Muslims in the 11th, 12th, and 13th centuries. The Crusades were a series of religious wars initiated, supported, and sometimes directed by the Latin Church in the medieval period. The term refers especially to the Eastern Mediterranean campaigns in the period between 1096 and 1271 that had the objective of recovering the Holy Land from Islamic rule.
-Kelly (Your Welcome)
The answer is D. Africa had been a land of ethnic tribes that would rise and fall. The colonization of Arica brought settlers, such as the Boers (Dutch), British, Portugueses and so much more.
The correct answer is C.
John Muir ( also known as John of the Mountains and Father of the National Parks ), was a Scottish-American naturalist, book author, environmental philosopher and an <em>avid advocate for the preservation of wilderness in The United States.</em>
In his books and essays he described his adventures in nature, especially in the Sierra Nevada. With his dedicated work he helped to preserve many wilderness areas such as the Yosemite Valley, the Sequoia National Park and many others.
Muir was also the co-founder of the Sierra Club which is a prominent conservation organization.
Muir's life work has been inspiration to many politicians, congressmen and leaders to take action to preserve large nature areas.
It ended the Russian involvement in world war 1.