There is of course another theory regarding the birth of the Japanese islands, which goes something like this: Some millions of years ago, a great volcanic upheaval caused the birth of the Japanese archipelago. I say some millions of years because no one knows exactly when it happened. At least, I think it is safe to say that nobody actually witnessed the event ( not many humans around at the time ) and even if they did I doubt very much if they would have lived to tell anyone about it.
Consequently, over the next 600 years or so the new masters of Kyushu first consolidated their position and set up a new state all of their own, and, having had quite enough of the Stone Age they started to import bronze tools and weapons which had spread from northern China. Not so that the Bronze Age was to be long lived. It was soon overtaken by the Iron Age which the Chinese Han dynasty ( 206BC -220AD) had thoughtfully developed. Even in those days, the Japanese were not slow in utilising foreign technologies!
MIGRATION EAST : THE YAYOI PERIOD ( 300BC > 300AD )
So, just to recap, we have two separate cultures living in Japan. An older culture which is fairly widespread throughout all of Japan and a newer, rather more advanced culture which has settled in Kyushu. Unfortunately for the newer culture, Kyushu didn't have much going for it. There were plenty of mountains and the fishing was probably OK but that was probably about it. Not much to start a new civilisation with.( I hear the Vikings had a similar experience in Greenland).
So what happened next? Well that all depends if you believe the legend or to the opinions of archaeologists. According to the 'Chronicles of Japan', in about 600BC the Emperor Jimmu led an expedition from Kyushu and founded a new state called Yamato in the centre of Japan. The problem with the Chronicles of Japan is that they were not written until the 8th century. Rather like someone in the 20th century writing out the legends of King Arthur and saying,"Hey man.This is true! It really is."
Well, it turns out that although the Japanese hadn't figured out how to write things down, the Chinese were already pretty good at it. It also turns out that the Chinese records - and there were a LOT of them - contain the odd reference to Japan. Not that it was called 'Japan' in those days, of course. Actually, it was called 'Wo', which isn't much of a name so I'm not surprised that it soon got changed. Anyway, these Chinese references and other archaeological evidence suggest that though the migration itself was factual, it didn't happen until about 300AD. So the Emperor Jimmu either had little to do with it or lived a very, very long time!
Not that the archaeologists really know what happened either. All they can say for sure is that between 265 and 369AD, the Kyushu guys moved east , absorbed or exterminated the locals and founded the state of Yamato. Why then, I hear you ask? Well, in 265, the Chinese 'Wei' dynasty - the dynasty that did all the writing - bit the dust. And 369 is the year when forces from the new Yamato state invaded Korea and started a fashion that was to last 1600 years.
Exactly how or when the new state was founded is unclear. Historians say, "It is one of the unsolved mysteries of Japanese history", which means they don't have a clue ......and neither do I!
The best guess is that the Kyushu Japanese lived in a clan system similar to the Scots. However, unlike the silly Scots they managed to stop fighting each other long enough ( but only just ) to expand a little and make it more profitable to fight together - against someone else!
THE YAMATO STATE: THE KOFUN PERIOD ( 300 > 710 )
As mentioned previously, Kyushu was a bit low on natural resources. The biggest pain was that there was a distinct lack of land suitable for cultivation. So quite naturally the more adventurous folk decided to explore other regions to see what was out there. After all, they had learnt all about irrigation from the Chinese if you remember and probably couldn't wait to find some decent land on which to try out their new found science. Once they reached what is now the Osaka plain they realised they had found just what they were looking for.
Though little is understood about the initial workings of the new Yamato state, they had obviously got their act pretty well together. Not only did they build a new capital in the centre of Japan, they also doubled back to Korea and pinched the southern tip from the previous owners. Land grabbing in both directions!
By this time the Japanese had adopted Shinto as their religion and it is apparent that the leader of their most important 'imperial' clan was not the big boss in terms of politics and military matters, but was primarily their most sacred spiritual leader. The day to day stuff was handled by his aids, who were most likely lesser chieftains. So here was set a president that was to last until the nuclear age.
In this period of Japanese history relations between Yamato and Korea became quite close. After all, they were of the same stock. In fact, the invasion of Korea was at the request of the king of Paichke. King of where?? Well, in those times, Korea was divided into three countries. The kingdom of Koguryo, which approximates to what is now North Korea, the kingdom of Paichke, which would be the western half of South Korea, and the kingdom of Silla which would be the remainder. Paichke was, at the time getting loads of hassle from Koguryo, which was getting way too big for it's boots. As Paichke and Yamato were best mates, Yamato sent an army to help out. The result was that Koguryo came second, the king of Paichke was really, really happy and Yamato won a piece of Korea which they called Mimana. At least, it probably happened that way. Mind you, Paichke came to grief in the end, but more of that later.
As far as our story is concerned, the really good news is that the king of Paichke was so chuffed that in the year 400 (or so ) he sent the Japanese a present. Writing. Yes, writing! After that the Japanese started to write stuff for themselves so at last we can start to trust the Japanese Chronicles. Well, a bit. Anyway, this is a BIG event because now we start to hear names and places that we are pretty sure are true. ( A big help when writing history ).