List of Important Days and Dates 2021: In this chapter, detailed general knowledge information about important days and days and dates of International (World) and National (India) is given. Here we are telling you about the main days celebrated in India and around the world, and will tell you about the major days celebrated in India and different countries of the world and their dates here on every day and month wise. The day of an important event in history or the birthday of a great personality is celebrated as Important Days and Dates at the world level or national level. And questions related to these are also asked in all competitive exams. The gathering days include the birth anniversary of famous people celebrated in India and the world, Memorial Day, Martyr's Day, and Revolution Day etc.