They had to actually collect people who were willing to go, collect enough supplies and Good, weather could have been bad, sickness, lots of people scared to go to a new land
Roosevelt exercised police power to manage the Philippines and Cuba,promote Panama's independence to defuse the international crises.
Tsars were similar to dictators
A using multiple sources to confirm a conclusion
British aristocracy had a lot of money but in general they weren't allowed to do any work. They would have to devote to things like art or or philosophy or such things. They used the money to invest into businesses and participate in such a way that was allowed for them by the society. They helped develop numerous new innovations with their money.