Answer:
Global Spread: Gold Standard
The stock market crash of October 1929 led directly to the Great Depression in Europe. When stocks plummeted on the New York Stock Exchange, the world noticed immediately. ... The gold standard was the primary transmission mechanism of the Great Depression
Answer:
Evidence, clues, or pieces of the past
Explanation:
They need some way of knowing, so they study evidence,clues, and pieces of the past to figure out history.