Which dynasty first introduced the concept of a calendar?

Han Dynasty

Explanation:

Han Dynasty

Explanation:

The Chinese calendar was developed by many of the Chinese dynasties of Ancient China. However, it was in 104 BC during the rule of Emperor Wu of the Han Dynasty that the current calendar was defined. This calendar was called the Taichu calendar.

well since twins have about the same dna they dont have one think in common which is the figer print. nobodys fingerprint is the same. if your using twin you would most likely get around the same results for both of them because of the genetics.. i hope this

it's the under parts of the car