5 to the last one sorry I don't know more
Answer:
Dysentery, Scurvy from the trip and food in general. It's why the Galapagos became a pit stop for awhile and they'd roll Tortoises onto the ship as rations later, It apparently tasted good but being a time where everyone was malnourished, the bar was pretty low. Giant tortoise was a part of sea fare. and now their endangered.
Explanation:
Every state was given equal representation
Mussolini's government has really changed the country, and Italy took part in the first world war. In 1920s there were also climate changes.