Online Course/Book: Evolution of Cavalry Tactics, American Revolution to Civil War.

The user's direct questions, "How did cavalry tactics evolve between 1775-1870?" and "Were direct cavalry charges useful between the American Revolutionary War and the American Civil War?", along with their admitted lack of knowledge about European history on this topic, really underscore the need for a specialized information resource. A well-researched e-book, an engaging online mini-course, or a series of in-depth articles or video essays would be perfect. This resource should dive into the evolution of cavalry tactics during this crucial century, specifically analyzing the effectiveness of direct charges, the impact of advancing firearm technology, and the changing military doctrines. It should also provide comparative insights into the roles of cavalry in both North American conflicts (from the Revolutionary War to the Civil War) and European ones (like the Napoleonic Wars up to the Franco-Prussian War). The content should explore changes in cavalry armament, organization, and include key battles and campaigns as case studies.

Expected benefit: It would offer accessible, in-depth historical knowledge to military history enthusiasts, students, and researchers, directly addressing their specific questions and deepening their understanding of the evolving role of cavalry during a critical period of military change.