The United States had entered the conflict in Vietnam as the world’s superpower following its decisive victory over the Axis powers in World War II, but left Vietnam with a humiliating defeat, shockingly high casualties, American public sharply divided and its leaders uncertain of what lay ahead in foreign policy. <em><u>The nation’s longest and most debilitating war – the only war the U.S. ever lost, had far-reaching consequences and impact on most aspects of American life from the economy, culture to domestic politics and foreign policy – some of which continue to do so today. </u></em>
THIS ISN'T MINE ITS ROM GOOGLE BUT IT SHOULD HELP
The idea of the Renaissance spread from Italy to the North European countries. Factors such as expanded trade, the growth and development of European cities, the invention of the printing press, the rising rich class who wanted to support art, contributed to this. Many kings experienced artistic achievements as a source of national pride. Also, artists fled the war in Italy in the late 1400's. The Catholic Church's lack of interest in participating in the real life of people played a major role, simply did not want the change.
Still, the main factor was trade and technological innovation that go together.
The invention of the printing press is the dominant factor. Around 1450. Johannes Gutenberg invented mobile printing press.