user: Which two of the world's "super power" nations engaged in a cold war, following World War II?

assistant: The Soviet Union and the United States.

user: In 1779 Abraham Darby built the worlds first what

assistant: Metal Bridge

user: Who is Frank Lloyd Wright, and why is he famous?

assistant: Frank Lloyd Wright continues to be an inspiration in architecture around the United States and many of his originally designed buildings and structures stand today.