Allowed for echolocation and underwater discoveries such as study of marine life
Congress denied representatives from the former Confederate states their Congressional seats, passed the Civil Rights Act of 1866, and wrote the 14th Amendment to the Constitution, extending citizenship rights to African Americans and guaranteeing them equal protection of the laws.
Answer:
Persia's major success as an influential empire were transportation, coordination, and their tolerance policy. One of the main reasons that the Persian Empire was so successful was because of their tolerance of non-Persian citizens living in Persia.