Use examples from the lessons to compose at least one well-developed paragraph on the following: what is the difference between "separation of powers" and "checks and balances"?

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.