Thomas M. O'ReillyOpinionImmigration Ensures DiversityIt is estimated that immigration to the North American continent began no later than 10,000 B.C./B.C.E. It has continued ever since, and by all knowledgeable accounts this continuous flow of people seeking a better life is what has made and continues to make America great. Immigration is good because it ensures diversity.January 21, 2018Page 1 of 1