The genesis of modern human is a long evolutionary history that still puzzles even the most intelligent minds the world over. My most noble job while writing this book is to share with you the truth about the most intriguing issues that surround the origin of the modern human along the theory of evolution. Dead remains of living organisms or for that matter fossils, gives us the overwhelming evidence on how the human being came into existence thousands of millions of years ago. Fossil materials collected by the archaeologists and paleontologists around the world reveal how the modern man has evolved gradually from the most primitive creature to the most advanced Homo sapien sapien that inhabit and control the world today. The term evolution is used to mean natural genetic change that enables an organism to adjust itself with the changes in the environment over time. It can also be defined to mean the gradual change in an individual populations frequency of genes and the corresponding traits resulting from genetic mutations and recombination of genetic materials under the influence of natural selection and genetic drift.