What sent coded messages over a wire in a matter of seconds

Morning how ur day and quick question who started the civil war?

The economy shifted from to industrial during the first industrial revolution

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.