What does it mean when different continents contain rock layers of the same age?

it represents pangea. Pangea is the theory that the all of the continents collided together, creating a supercontinent. A mysterious force brought them apart like a paper boat on a stream. Pangea can be predicted by simply connected the continents like puzzle pieces and finding fossils which have their halves in two different continents.

chinese civil war took place over a long period of time between 1927 and 1950. the war was interrupted when japan invaded china in 1936 and by world war ii. the war was fought between the nationalist government of china, also called the kuomintang (kmt), and the communist party of china (cpc).