Well at first people named things for how they looked, for example, the heart has a heartlike shape. Eventually scientists started using Greek and Latin roots and such in names to prevent confusion.
States and the federal government have both exclusive powers and concurrent powers. There is an ongoing negotiation over the balance of power between the two levels.
Answer:
Due to peace situation, urbanization and end of isolationism.
Explanation:
The role of samurai greatly changed from 1100 CE to 1850 CE. in the beginning, samurai used by the kings for defending their territories against enemies but later the peaceful rule of two and half centuries of Tokugawa and his descendants decreases the necessity of samurai so they are decrease in number with the passage of time. The main reason of decrease in number of samurai is urbanization and end of isolationism.
They spent more money to go to space
They built a satellite
They went to the moon <span />
Since they needed workforce and the natives were uncooperative, the portuguese used their vast number of colonies in Africa to "import" workers
