Before the civil war, harriet tubman, along with other former slaves and white abolitionists, create what had become known as the underground railroad and were responsible for leading hundreds, if not thousands, of slaves to freedom. true or false?

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.