Smoke billows out of factory chimneys. A laundry line hangs from a tenement building. A diverse city "slum" bustling with activity, from pedestrians to street vendors. Signs in Italian, Chinese, Yiddish, Hungarian, Russian, and Spanish. A woman buys produce from a stand. An old man reads a newspaper. Children and a woman with a baby carriage on the street. People file out of a church. Newspapers in various languages at a newsstand. A trade union office. Men raise their hands at a meeting. The Immigration Act of 1924. An animated map shows influx and block of immigration. An animation representing flow of immigrants from parts of Europe. A new map shows influx from Canada, Mexico, and the Caribbean.