Horse Power: How Horses Changed the WorldFrom their earliest evolution to the invention of the "horseless carriage," this picture book captures howfor much of human historyhorses powered the world! For thousands of years, horses and humans lived, worked, and played together, side by side. From the time they were first domesticated to the invention of the wheel, saddle, bit, and bridle, horses brought far flung lands closer together at the speed of a gallop. Trade, agriculture,