The reason for the decline of the Heian Dynasty in Japan was "<span>Elite clans amassed most of Japan's lands into vast estates".</span>
Answer:
The ancient Greeks and Romans used dated references to eclipses to improve the calendar. They also noted phenomena related to eclipses. The corona seen during eclipses was only identified as a solar phenomenon in the middle of the 19th century.
Explanation:
Blacks had to carry passes at all times and live on "reserves"
Concurrent powers are powers that are shared by both the State and the federal government. These concurrent powers include regulating elections, taxing, borrowing money and establishing courts.
The answer is the Bering Strait land bridge.