Having started upstream on the Missouri River<span> from their </span>St. Louis<span>-area camp—where they had been preparing for the expedition since fall 1803—on May 14, William Clark and nearly four dozen other men met up with Meriwether Lewis on May 20. hth</span>
The USSR’s help in defeating Japan. The US wanted Stalin to attack from above during the invasion of Japan, aka Operation August Storm. This happened with the Soviet invasion of Manchuria.
Its called Passive resistence
Answer: New theories emphasized using technology to find answers. New theories recognized that explanations were not always possible