I recently switched subjects to history and have been catching up during the break. I am used to subjects like math and chemistry where I only need to understand a formula or concept and then I'll be good to go, so the note-taking is simple there. What I've noticed with history is that it's so extensive and takes way too much time the way I'm doing it now, which is basically taking regular notes.
TL;DR: Studying and taking notes for history is taking too much time for me.
Does anyone have any tips or techniques on how to study history in an effective and smart way? E.g. How to memories events and causes, historiography, etc.