If you're asking for just two random explorers, then Meriwether Lewis and William Clark. But im not really sure if thats what youre asking or not...
Answer: The most straightforward theory for Western Rome's collapse pins the fall on a string of military losses sustained against outside forces. Rome had tangled with Germanic tribes for centuries, but by the 300s “barbarian” groups like the Goths had encroached beyond the Empire's borders.
Explanation:
Answer:
The story about how he chopped down his fathers cherry tree
All immigrants coming into the US had to stop at ether of those places to be allowed into the US
Answer:
The division of powers between the federal government and the states.
Explanation:
Principle of federalism means that the power of the government in the United States of America is divided between the federal government and the state government. There are duties and responsibilities that is divided between them.
More power is given to the federal government compared to the power of the state government according to this principle of federalism. There is no interference in the working of both the divisions and they work in their own fields.
I hope this helps you.