During the "dark ages", as named by historians, why did bridge engineering come to a halt?

What was the significance other than the obvious harm to us forces of the terror attack on the uss cole in 2000

Historians have recently discovered a historical journal published in the early twentieth century. the journal contains facts based on original sources about the downfall of the early byzantium empire. historians consider this long-lost journal to be a breakthrough in their understanding of the byzantium empire. based on this information, the journal is a source.

Select the correct answer. what are concurrent powers? a. powers granted solely to state governments b. powers granted to the national government c. powers transferred between government leaders d. powers shared between national and state governments