=Distribution in ancient times.= The pigeon was domesticated at a very early stage of civilization. Like the fowl, the duck, and the goose, it was well known to all civilized peoples of antiquity. To what extent the distribution of pigeons in domestication followed the early migrations of the human race is not known. It is probable that pigeons were domesticated before the Aryan migrations began, and also that the domestic stock was sometimes taken by Aryan colonists to their new homes; but it is equally probable that at various times in the history of the earth people coming to new lands domesticated some of the wild rock pigeons which they found there. [Illustration: Fig. 187. Swiss Mondaine Pigeon[16]] [Illustration: Fig. 188. Splashed Homer[16]] [Illustration: Fig. 189. Blue-barred Homer[16]] [16] Photograph from Elmer E. Rice, Boston, Massachusetts. =Improved varieties.= Common pigeons are much alike the world over, and have changed little from the wild race, but in many different parts of the Old World the making of improved varieties began thousands of years ago, and in some places peculiar types were developed which were little known elsewhere until modern times. The varieties of the pigeon are so numerous that it is practically impossible to make a complete list of them. At the large shows in this country, classes are made for more than one hundred fifty named varieties, in about forty breeds. In many of these breeds there are eight or ten principal color varieties, and an indefinite number of less popular varieties, specimens of which compete in a miscellaneous competition in what is called the "any other variety class." There are probably nearly three hundred varieties of pigeons bred in America and England. On the continent of Europe the number is very much greater. The Triganica pigeon has one hundred fifty-two color varieties, and it is said that another variety in Germany, not known in England and America, has one hundred thirty-eight color varieties. Where varieties are so numerous, many of the color differences are necessarily slight, and only those who know them well can readily distinguish the different varieties at sight; others are bewildered when they attempt to do so. In this chapter only the most pronounced color varieties and the breeds of most interest to beginners will be described, but some of the most interesting of the others will be mentioned, to illustrate the range of the improved types developed by fanciers. [Illustration: Fig. 190. White Hen Pigeons. (Photograph from Elmer E. Rice, Boston, Massachusetts)] [Illustration: Fig. 191. Young Jacobin Pigeons. (Photograph from E. R. B. Chapman, Stoneham, Massachusetts)]