A fun new format including a time traveler's dial allows kids to explore the Earth's history. This interactive book format invites children to go through different time periods: explore the sea of the
This is the dramatic and inspirational first-person story of theoretical physicist, Dr. Ronald Mallett, who recently discovered the basic equations for a working time machine that he believes can be
It is said that the past is another country; therefore, the wise traveler begins with a comprehensive guide. That is the theory behind historian and author Mortimer's travelogue of fourteenth-century
Meet some of history's most illustrious and interesting characters in this book that visits key moments of the past from around the world. When young Augustus falls asleep in history class, Professor
Get ready to make history. . . better.What would you do if a time machine hurled you thousands of years into the past . . . and then broke? How would you survive? Could you improve on humanity's origi
