1 is false, waves can't propagate in a vacuum.
The size of the Atlantic slave trade dramatically transformed African societies. The slave trade brought about a negative impact on African societies and led to the long-term impoverishment of West Africa. This intensified effects that were already present amongst its rulers, kinships, kingdoms and in society.
Uban revolutionaries intercepted the letter from the mail and released it to the Hearst<span> press, which published it on February 9, 1898, in the </span>New York Journal<span>, in an article titled "Worst Insult to the United States in its History." Much of the press in New York began to demand De Lôme's resignation, and Hearst's </span>New York Journal<span> began a "Go Home De Lôme" campaign. These campaigns did, ultimately, lead to De Lôme's resignation. De Lôme’s unflattering remarks about McKinley helped fuel the United States of America's aggressive, warlike foreign policy.</span><span>[citation needed]</span><span> Two months later, on April 11, 1898, McKinley delivered a war message to Congress asking for "forcible intervention" by the United States to establish peace in Cuba </span>
