Japan used to be an isolated country as it's borders were closed to everyone. After they opened the borders, they started developing the country by accepting new technologies and anything similar that was considered to be beneficial for the country's well being. They also started to perfect things that they adopted which led to new inventions and advancements.
Lincoln freed the slaves by signing the emancipation proclamation.
As a result of crisis at the Democratic National Convention of 1968, people lost faith in the system. The Democratic National convention was held from 26th of august to 29th of August in the year 1958 by the United States Democratic Party. This convention took place at the International Amphitheater in Chicago of Illinois.