Thomas Edison created the lightbulb.
The Dawes Plan<span> provided short-term economic benefits to the German economy and softened the burdens of war reparations. By stabilizing the currency</span>
John Wallis was an English clergyman and mathematician who is given partial credit for the development of infinitesimal calculus. Between 1643 and 1689 he served as chief cryptographer for Parliament and, later, the royal court. He is credited with introducing the symbol ∞ to represent the concept of infinity.
<u>It refused to ratify the Treaty of Versailles or join the League of Nations.</u>
The U.S. wanted to stay out of global affairs and avoid any type of alliances and international participation that didn't serve American interests, consequently the Congress refused to ratify the Treaty of Versailles and to join the League of Nations -an international organization proposed in the treaty-.