It is claimed by certain historians and sections of the media that Mughal emperor Akbar invented the modern Bengali calendar. This is not true.
Akbar did not create the Bengali Calendar. It is nowhere mentioned in Ain-i-Akbari or any other Mughal source. The calendar dates back to the time of King Shashanka, even before Islam was born.
The Bengali calendar was already used in inscriptions of Shiva temples in the Bankura district, which are around 1000 years old. How on earth could Akbar create a Calendar that was used more than 500 years before he was even born?