PLEASE HELP IN ONE MINUTE. WILL MARK BRAINLIST

Name three new weapons that changed how ww! was fought and how?

Who was the fifth president of the u.s.

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.