* Bengali Calendar: The Bengali calendar is lunisolar, meaning it's based on both the lunar cycle and the solar year.
* Year Difference: The Bengali calendar starts 593 years after the English calendar.
* Month Length: The Bengali month Chaitra has 30 days.
Here's how we can convert 28 Chaitra 1378:
1. Year Conversion: Add 593 to the Bengali year: 1378 + 593 = 1971
2. Month Conversion: Chaitra is the last month of the Bengali year, equivalent to March/April in the English calendar.
3. Date Calculation: The 28th of Chaitra falls in April of the English year.
Therefore, 28 Chaitra 1378 in the Bengali calendar corresponds to April 14, 1971 in the English calendar.