The Great Plague transformed Europe because it caused people to be very cautious not to catch the deadly disease and later on, it killed thousands of people which made some people feel lucky to be alive. This also has made an impact on history because this is such an important time that we hear about and we find it very interesting that a sickness could have killed thousands.
Hope this helps!!!:)
In Asia, different leaders used different ruling techniques. Depending on the time period of this question, you can use China, with points about their bureaucracy and their civil exam system (where you have to be intelligent to be in the government). You can use the Japan and their Tokugawa system. They had a ranking of people like the Samaria and leaders. That’s how they exercised their power.
Their thoughts can't be hundred percent sure without the diaries but they had thoughts on how much hardship they would have to go through the trip across mountains and rocky paths, they also had to survive with minimal resources, so their thoughts on this was probably brave and rough trip, they had no clue if they were gonna survive or what was gonna happen, they territory was unknown.
Increased tensions between the countries and development of many dangerous weapons.
The book was called "Mein Kampf" Hope this helps ;)