By the early 1800's, much of europe still had a less efficient transportation system than

What was the result on the u.s. economy because of the major changes in atlantic shipping prior to and during the war of 1812?

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.

Who did the first work in creating vaccines