In the remote ancient times, the ancestors of human beings is still in collecting and fishing and hunting for a living in the period, the place of their activity is forest, grassland, rivers and lakes. With no water tools, deep water fish, is expected to but can't get; The other side of the river, visible and not hunt wild animals; The flood to escape by, will be drowned. They in a day, and the flood with a long struggle of the beast in talents, added to the growth of wisdom. Natural phenomenon that they are all kinds of useful inspiration. The view that leaves boat reflects our early ancestors to some object can float on the water understanding. Perhaps that's because this natural phenomenon, just cause people to the idea of voyage. Ride on sat on a log floating downstream, it can be; If he is still holding a piece of wood, can move around. If the log, people can be comfortable tunneling to sit inside, and can carry on their own goods. This is the earliest people to create the ship, the canoe. Later, people and gradually learned to use local materials, producing a simple, steady, load area bigger raft. The type of the raft, the raft, more bamboo rafting, PiFa, etc.
