US Commodore Matthew C. Perry´s mission was to make Japan open to trade. He first arrived in 1853, conveying a letter from the president of the United States. He returned in 1854. Perry´s mission effectively forced the end of the self-imposed isolation of Japan which had existed since the first half of the 17th century. Japan was closed to the outside world by the Tokugawa shogunate, only Dutch vessels were permitted to anchor at Yokohama´s bay and conduct limited trade with the Japanese.
Answer:Nast's use of cartoons was such effective tool in his battle to expose corruption, because it was the easiest way to get to people, and for them to see what was actually going on. If his drawing were publish on the new paper more people wolud be able to see it. A drawing is more effective because you don't need to know how to read to get the message from a picture.
I believe the printing press. Before the printing press books were very rare and expensive. Most religious scrolls were put on cloth or papyrus(a type of plant). After the invention of the printing press it made books less rare and expensive. And launched the world into a more modern era.
