To people in tokyo its mportant to know that its how japan attacked china and tokyo made a change
They settled by rivers and in fertile valleys so that their food could grow better and faster. This eventually also led to not only surplus food, but then people could have multiple jobs each and bring in more money for their family. That's basically how civilization started.
THe answer is d world population increased
The answer is Canon of Medicine or letter. Among the treatments written in this work were
teeth filling, toothaches as well as addressing oral cavity. It also discuss the functions and importance
of chewing and swallowing. They also
made a connection between oral symptoms and diseases.
