BR2-09 The first castle!!

I read the story of castle. This story is about the origin of castle. There are many castle all over the world. Each of the castles is different with any other countries’. I knew about how to start the making castles. First castle was made for safety of the lords, but the castle was made of wood. So, most wooden castles were flamed by their enemies. It was not safe. Wooden castles gradually became Stone castle. Japanese castle was famous for these. Especially, Kumamoto Castle is very famous for its guard that made of piled stone. This guard could stop their enemies from entering the castle. To make a castle, it needed long time and many workers. I think it is natural because castles are very big and its structure is very complicated.
Through reading this story, I could know the origin of castle![144 words]