Answer:
he Seneca Falls Convention was the first women's rights convention in the United States. Held in July 1848 in Seneca Falls, New York, the meeting launched the women's suffrage movement, which more than seven decades later ensured women the right to vote.
Explanation:
Florence was the most famous. :)
The correct answer is the Influenza Pandemic.
This Influenza (flu) Pandemic killed between 20 and 100 million people (estimates differ) - more than the war itself!
The source of the Pandemic is still not known, and people suggest such places as the US, China and France.
The oldest Terrorist group was known as "The black hand" they assassinated Archduke Franz and that our break the war. The organization wanted to cause terror to Austria. They organized from Serbia in 1911, it's more like a secret military society.<span />