I would say that the social support systems of developed countries are far more advanced than those in developing countries. Developed countries invest about 40% of total money into these programs that ensure the safety of their citizens. On the other hand, developing countries invest less that 10% which means that the system is poorer and doesn't provide much for citizens.
I’m not sure if you mean technological and economic development or just products coming out kind of development.
Well I’m not gonna write out two paragraphs but some important tech and economical developments were:
The radio became widespread. It was welcomed by the public and by 1934 almost 60% of the US had radio access. Sports events, news, dramas and more were broadcasted through the radio.
Stock markets across the west developed negatively. On Black Tuesday, stock markets crashed, sending the world into the Great Depression.
The catholic church wanted to share power with the emperor, so the coronation was an occasion to say in a very public way that the right to make a person king was in the hand of the church, thus making the church itself a very powerful entity who could in fact play a crucial role in the balance power of the period, as it was in many occasion.
A. To provide aid to countries, especially in Western European countries, to keep them from becoming communist.
