This is the last of 8 books dealing with the history of mankind. Starting in the 20th century this book goes until the end of time. A lot happened in between. Global warming stupidity, aliens, war, politics, misinterpreted laws of God, spontaneous human combustion, prophets of our future war with the Moslems, and taxes. While these seem similar, there are differences that will surely help you understand the complete history of mankind.