Hello,

You haven't mentioned the name of your college, anyway you may visit the official website of your college to know about exam dates or else you may contact the college officials for more details regarding this, and about learning history, you can refer your college study materials, though you haven't mentioned you have to learn which specific period in history, is it ancient, medieval , modern, or world for that matter, you can always refer to Internet and YouTube channels, if you find any topics difficult to comprehend then you may take help of this portals, in YouTube also there are channels like CEC by eminent faculty in their respective domain, video lecturer are quite useful in understanding difficult subjects, for a subject like history if you keep your focus, and understand it deeply, then you don't have to mug it up, it can be like storytelling as in you listen go it carefully, grasp it and write it down in your own words, you can also make notes, it often useful especially at times of revision, there are various channels in YouTube which you can watch such as study iq, mrunal patel etc.