The first major event in 1949 was the Soviet Atomic Bomb Test. This shocked the US because it didn't expect the Soviets to have this weapon this early on. This event led to many Americans scared for their own safety. As a response, the US started expanding its weapons.
Other events include the formation of the North Atlantic Treaty Organization (NATO) by the US. The Soviets responded by forming the Warsaw Pact to counter the threats posed by NATO.
Wars bring people together by making people work together.
Democratic techniques in the modern world have embodied the ideology of democracy, but the overall structure has been diluted over time. "The dominant ideologies in modern capitalist states have tended to dilute the democratic idea, to dissolve it altogether into the concept of liberalism, to offer liberalism not as a complement to, but as a substitute for, democracy as popular power"
New technologies like steam engines, railroads, and telegraphs which made communication and transporting goods and materials across the country with ease turned many local businesses into national companies.
The nobility, such as the barons, would be the ones responsible for ruling different regions of the country