I believe it was the Stock Market Crash of 1929
Answer:
scurvy and pneumonia caused by a lack of shelter in the cold, wet weather.
Explanation:
Indus Valley, Ancient Egypt, Yellow River Civ, and Central Europe I think.
Answer:
Ada lovelace was also the worlds first computer programmer
<span>The Emergency Quota Act, also known as the Emergency Immigration Act of 1921,restricted immigration into the United States.</span>