Answer:
The greatest difference between the two countries was simply that American citizens generally thrived because of free market economic policy, whereas Russians suffered under the inefficiencies of their command economy.
It was WW1 because a lot of countries had economic problems after than that lead to the nation wide Depression
The painting represent happiness so it is kinda like you with them the best of luck and hope they will be happy with the adventure life takes them on.
This is the result of the Byzantine culture, the orthodox church was established within the byzantine empire, they took upon the greek alphabet and it widely spread through their missionary works, many eastern European countries adopted the orthodox church and one of them happened to be russia