How did victory in the Persian Wars strengthen Athens?

They strengthened the power and self-confidence of Athens in the first self-preservation exercise after the era of the tyrannical rulers. The city could, based on its military success in these wars, attain after 477 B.C. a political and economic supremacy for a while among the Greeks.

Explanation:

it would be  

germany had to pay all damages related to the war.

and i think

germany had to take sole responsibility for the war.

2. a land bridge connected asia and north america thousands of years ago.

4. crossing the land bridge would have been simple for the first migrants.

5. people might have crossed a land bridge while hunting animals.