What was early boat building technology like?

Making a canoe was too complicated for primitive people who lacked advanced tools. People also bundled tree trunks, bamboo poles and reeds into rafts, or used animal skins to make rafts to float on the water. Raft relative to the canoe is much more stable and safe, and easy to get materials, manufacturing simple. But the performance of this raft is not good, encountered rapids is very poor stability. People began to look for ways to find something else to use instead.

Entering the Bronze Age, people have mastered the bronze tools, can be relatively easy to split logs into boards to build plank boats. Archaeologists are examining the ancient wooden boat is very surprised to find that these boats and modern wooden boat is almost exactly the same: outside the boards with planks of wood flat or lap into a boat shell, plus a few cross-wood as the boat's "ribs"; in order to prevent leakage of water, in the wooden seams are stuffed with some linen, putty and so on, so that it is a seam. It seems that the ancient boat-building technology is very smart.