Not only is it the purchase of about 40% of America, it also helped grounds to on-go our advancement as a civilization.
Either the Crusades or Polo's journeys.
The answer is false
explanation: because
Around the world and beginning in the 1830s in the u.s. the growth accelerated "during the <span>industrial Revolution". This revolution made the incomes of most social classes except the elite soar in ways they had not before, creating upward mobility.</span>
Lao Tzu attempted to solve the problems of the period of the warring states through his teachings of the Daodejing (Classic of the Way and of Virtue). In his teachings, he emphasized following the way of nature (the Dao). He also stressed on simplicity, meditation, and living in harmony with nature