What was the comprehensive list of existing roman laws created by justinian i called

What was gained through the gadsden purchase

What was the main objective of the national origins act of 1924

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.