"Mary Soderstrom has set herself a giant task in Road Through Time - one that begins with the first anatomically modern humans leaving Africa 50,000 to 80,000 years ago and ends on a bus zigzagging its way through today's South America . [It] provides a lucidly written overview of this particular march through the lens of time: the discovery of horses as transport, the invention of the wheel, the establishment of early trade routes, and the expansion of empires through war. Soderstrom's narrative picks up steam, literally, as she takes us through the development of trains in the 19th century and automobiles in the 20th . Soderstrom transports us from the romance to the brutality of the road and leaves us wondering if there's room (or time) for still more marches across this aching planet."http://www.quillandquire.com/review/road-through-time-the-story-of-humanity-on-the-move/.