What organizes and unites groups of people? How does geography affect development?

Yes Geography affect Development. Actually geography has one of the key factor in development. It is fact from the ancient history population were found near the rivers. And even in the modern day geography we can easily figure out place which is connected with the ocean directly is the way more developed than the landlocked geographical area.

Explanation:

because Geography plays a substantial role in the development and success of an economy. Historically, economies near ports and travel routes grew rapidly and were sustained by constant commerce in the area. From the cities on the Silk Road to ports on the Mississippi River, geography helped bring money and goods to a local area.

Explanation:

in 1897, pershing became a tactical officer at west point, and that's where he was given the nickname "black jack." pershing's first name is "john," for which "jack" is a nickname, and he was a white man who commanded black troops. hence "black jack".