Some of the tradition and customs are as ancient as prehistoric days, while others are relatively recent.

The indigenous customs and festivals that has been preserved and nurtured through the ages are principally center around agricultural practices.

These include nabonno (the festival of the new harvest) and pawhela boishAkh (the Bengali new Year). Religion has also played a distinct role in shaping the mores and traditions of Bangladeshi life.

Bangladesh is a predominantly Muslim country, and Islam's adherents in Bangladesh celebrate the joyous festival of the two Eids, Eid-ul-Fitr, and Eid-ul-Azha, the month of Ramadan, Shab-e-Qadr, Shab-e-Barat etc. Hindus in Bangladesh celebrate Durga Puja, Kali Puja and Janmastami.

The Buddhists celebrate Buddho Purnima and the Christians Christmas. These are just a few of the religious festivals and feasts that Bangladeshis celebrate in their day to day life.

National occasions also mark Bangladeshi life, and these include Independence Day, Victory Day, and the historic Language Martyr's Day.

Social customs like birth, naming ceremony, marriage, and death too have a distinct Bangladeshi flavor with each ethnic and religious group having their own unique way to mark these traditions.