<span>In the expert from John Muir's "The America Forests," which was feature in Atlantic Monthly in August 1897, the trees that he is describing are "more than three thousand years [old]." Moreover, they existed "long before" Christ's time. They survived "...drought, disease, avalanches, and a thousand straining, leveling tempest and floods..."</span>
Aztecs built chinampas ('floating gardens') in order to provide additional farm lands (answer C). The idea was to grow crops in small rectangular areas (ci. 30 x 2.5 m) on shallow lake beds. Aztecs began to use chinampas in Tenochtitlan in about 1250 AD.
Chinese Communist leader Mao Zedong declared the creation of the People's Republic of China (PRC). The announcement ended the costly full-scale civil war between the Chinese Communist Party (CCP) and the ... World War II
