For example, I took a trip to Angel Island in San Francisco when I was in high school. I visited the Angel Island immigration station, which is a former processing center for immigrants entering the United States. In the building there are rooms with bunk beds. I saw the things the immigrants used before and I read the poems they wrote on the walls. Inside the building there are courtyards and activity rooms for immigrants. It's a beautiful building with a beautiful environment. Based on what I saw, I believed Angel Island was a nice place for immigrants to stay before their immigration status was processed. Later, when I searched online for information about the immigration station, I found that Angel Island was almost like an immigration prison. Immigrants were not allowed to move freely in the building. There were many restrictions and harsh treatment for immigrants. When I think about Angel Island now, I see it as a horrible place for former immigrants, despite the beautiful environment I saw. Even if the memory of the actual observation can be remembered correctly, we tend to distort our memory with the suggested information. External factors can influence our credibility towards our memory and thus cause the memory to become