The New World owed something more to Asia, of course; but how much, is uncertain. Most anthropologists believe that man crossed Bering Strait with a very meager kit of material culture. He brought, at various times, the spear-thrower, the bow and arrow, the dog, the boat, the strike-a-light, some kind of clothing, but not a great deal more. Many other things—pottery, weaving, agriculture, masonry, metallurgy—he had to invent for himself in the New World; at least, that is the general opinion. A few anthropologists say that men out of Asia brought quite an array of culture traits; but these migrants were late comers, and some of them crossed the Pacific by boat. Only a few students now deny that men had been crossing over from Asia through twenty or more millenniums before the birth of Christ. Some of them were what we call Indians—most of them, no doubt; but, before the Indians came, there seem to have been other immigrants. It is the purpose of this book to tell you what is known or believed or hazarded about these earliest men of the New World. There are two chief problems: When did these men come? and What were they like? It is a curious fact that, if we look at the rich variety of men and languages and cultures which was spread from end to end of two whole continents when the European came, we get some vague idea of how long man had been in the western hemisphere but no idea at all of what he was like when he anticipated Columbus by discovering the New World. Through the haze of time, we can see the general outline of Indian civilization, and many details. Much of this is clear and concrete, most of it is natural and understandable in terms of our Americas, and all of it is striking and extraordinary. But, for our present purposes, the best it does is to tell us that many millenniums of time must have been required for its development. It tells us nothing about the men who preceded the Indian, the primitive savages who discovered the New World. These men who first journeyed from Bering Strait to Cape Horn were not the men who made the Maya civilization, and they came long, long before. But by studying both the Indian and his predecessors we may gain some hint of how long ago this was. Time-Tests by Travel, Tongues, and Physiques