I believe the answer is: The flurry of investing artificially raised the price of stocks
The value of stock in speculative investing would be depended on the amount of people who buy the stocks rather than the company's performance in the market. This would give the impression that a price for a stock is higher than it supposed to be and weaken the stability in the stock market.
The invasion of Belgium should be the answer
I would go with john locke
Answer:
The Equal Pay Act of 1963.
The 13th Amendment was necessary because the Emancipation Proclamation, issued by President Abraham Lincoln in January of 1863, did not end slavery entirely; those enslaved in border states had not been freed. ... The 13th Amendment forever abolished slavery as an institution in all U.S. states and territories