What event triggered the war between the union and the confederacy

What was gained through the gadsden purchase

True or false: abraham lincoln delayed the emancipation proclamation to make sure the border states would stay loyal. *

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.