Answer:
how did a gentleman in london deal with horse
While there were many other factors, threats and violence definitely were key aspects to Hitler's rise to power. His use of terror tactics made people obedient through fear. After acting upon his threats, they knew if they didn't follow him, there was a good chance they would die. He used a sort of manipulation that while brutal, tends to be effective, as portrayed through many events and leaders in history, such as the French Revolution, Mao Zedong (China), Stalin (Russia), and Leopold II (Congo).
The Ice Age ended and the climate changed
Not limited to citizens initially to mortals to Greek mythology and reality (sorry if it doesn't make sense ;-;)
The rudder helped them venture further from they're home.<span />