Essay Based IB SubjectWatch
For higher level history I can give you a tip: Its about mixing facts with personal (reasonable) analysis. Download as many grade boundaries from the previous year as you can and see what the examiners love. Study the grade boundaries of your route (European history, or middle eastern history etc. etc. etc.) Getting the perfect essay structure and organizing your thoughts in a clear manner is literally half the deal. The rest of the deal is to deliver good essay content.
Law schools do like history I heard. So if you want to study law, then history should be one of your priorities if you ask me.