For a long time now, immigration has played a huge role in revolutionizing infrastructure, culture, and the people living in certain communities. The first examples can be attributed to the immigration to the Americas, which displaced Native Americans. In this case, the indigenous population was seen as inferior and hurt. In other circumstances such as during WWII, many immigrants have helped achieve certain technologies. The most notable of these examples is what Albert Einstein did. He immigrated to the United States and helped form many hypotheses and even the atomic bomb.
My community of Great Neck, New York, has truly changed over the past few decades. Since the Iranian Revolution in 1979, my family and culture have immigrated and settled here. To date, we have a close community where nearly everyone knows each other. We changed the infrastructure based on our culture and built many synagouges. Furthermore, being Jewish, I have realized from time to time that not many people understand what kosher means. In my community, every single person knows what kosher means, but when I go to basketball games or other places and ask people if certain food are kosher, they are confused by the question – they don’t know what it means. This example demonstrates the extent to which this immigration has affected the community of Great Neck.
http://en.wikipedia.org/wiki/Persian_Jews