The horse was domesticated in Asia, and Clark Wissler[1] shows that to be one great centre of cultural distribution for this animal. It spread from Asia into Europe, and from Europe into America. The llama was early domesticated in South America. The American turkey had its native home in Mexico, the hen in Asia. The dog, though domesticated very early in Asia, has gone wherever the human race has migrated, as the constant companion of man. The horse, while domesticated in Asia, depends upon the culture of Europe for his large and extended use, and has spread over the world. We find that in the historic period the Aryan people everywhere made use of the domesticated goat, horse, and dog. In the northern part of Europe, the reindeer early became of great service to the inhabitants for milk, meat, and clothing. The great supply of milk and meat from domesticated animals added tremendously to the food supply of the race, and made it possible for it to develop in other lines. Along with the food supply has been the use of these animals for increasing the clothing supply through hides, furs, skins, and wool. The domestication of animals laid the foundation for great economic advancement. _The Beginnings of Agriculture Were Very Meagre_.--Man had gathered seeds and fruit and berries for many years before he conceived the notion of planting seeds and cultivating crops. It appears to be a long time before he knew enough to gather seeds and plant them for a harvest. Having discovered this, it was only necessary to have the will and energy to prepare the soil, sow the seed, and harvest a crop in order to enter upon agriculture. But to learn this simple act must have required many crude experiments. In the migrations of mankind they adopted a little intermittent agriculture, planting the grains while the tribe paused for pasture of flocks and herds, and resting long enough for a crop to be harvested. {94} They gradually began to supplement the work of the pastoral with temporary agriculture, which was used as a means of supplementing the food supply. It was not until people settled in permanent habitations and ceased their pastoral wanderings that real agriculture became established. Even then it was a crude process, and, like every other economic industry of ancient times, its development was excessively slow.