Origin of Races: America is known for its great diversity of people from all over the world, and whether we are short or tall, large or small, or light or dark, human beings are all genetically related, descended from Adam and Eve.
Adam-Jacob Timeline for Years of Life. The vertical line represents the flood. Notice that years of life after the flood are much shorter since pre-flood earth conditions were very different and people lived much longer during that time. http://www.answersingenesis.org/assets/images/articles/2009/01/timeline.gif