Why do we celebrate the new year in 1st of January?

When did we start to celebrate the new year in 1st of January every year?Thanks the Romans for that.Roman dictator, Julius Caesar decided to celebrate the new year in January.For the first time, it was celebrated in 45BC. The name January comes from  Roman god Janus – god of doorways and beginnings.

Ancient Persian New Year Celebration

January was named after God Janus

Mural depicting Mesapatanian new year celebration

But everyone did not celebrate new year in January.Ancient Greeks celebrated the new year on December 20, Egyptians, Phoenicians, and Persians began their new year around September 20 and  Mesopotamians celebrated it on March 20.The  Mesopotamian new year is known to be the earliest recorded new year celebration.