Arrivals: There Goes the Neighborhood

In history, there are multiple records of people moving in on new land thats already been inhabited and shortly after, problems arise. This still occurs in modern America today- judging people before you meet then and assuming that what they bring will corrupt or otherwise bother what you already have. 
One of the earliest records of this is when Columbus and his men settled in America, which was already inhabited by the Indians (Native Americans). Now of course, the Indians were living on the land seemingly long before Columbus settled there, and they were not very happy about what happened when he did. His attitude towards the Indians gave off the impression that he believed they were savage and untameable, though he did try and make them more like him. He tried to convert them to Christianity and get them to adapt to his language and dress and ways of life, which would theoretically change a lot for an Indian. This shows that Columbus came to what he thought was a bad "neighborhood" and tried to change it and make it better based on what he thought. 
As I said before, this still happens in modern society. The idea of judgement before knowing someone and having doubts about what they can do isn't necessarily common but it does exist. For example, like the title says, a group of new people move into an already established neighborhood. In a perfect world they would be accepted and join in and everything would be great. In the real world they may be treated bad because they are new, or they may treat the others in the neighborhood bad and change it. The new arrivals come and, oh, look at that- everything is changing- there goes our old neighborhood. 
This concept of judgement hasn't fixed itself nearly enough over time, as it still exists now. If people gave others a chance before assuming the worst, then maybe the world would be just a little bit more of a better place.