Explanatory Question
সর্বপ্রথম কোন সাহাবী হিজরী সন গণনার প্রবর্তন করেন?
Read the answer carefully and go through the related questions on the right side to improve your understanding of this topic.
উত্তরঃ ওমর বিন খাত্তাব (রাঃ)।
First read the answer fully, then try to explain it in your own words. After that, open a few related questions and compare the concepts. This method helps you remember the topic for a longer time and improves exam preparation.