The answer is : To lessen the chance of revolt within the ruler's domain and ensure a prolonged reign. Hope this helps!:)
After a brutal war, which was known as the “Great War” fought between 1914-1918 (U.S involved: 1917) Woodrow Wilson wanted the League of Nations to shape his hopes of avoided conflict by settling problems though the League of Nations. His vision after the First World War, was too dump reparations on Germany, blaming the Germans for the start of the First World War. Then Adolf Hitler rose up in 1933, disregarding the League of Nations, and this lead to the end of the failure which was known as the League of Nations.
1-whitney
2-howe
3-wright
4-cooper
5-hargreaves
6-ford
7-field
8-morse
9-watt
10-edison
11-fulton
12-mccormick
13-oliver
14-drake
15-bell
Because it helped them gain money and popularity.
They can expand their colonies and if they expand and trade more then more people will know about trading. Expanding their colonies was inprotant and their rivals became less popular which caused decline in their trading