The Common Man era
The striking feature of the Jacksonian era was the increase in the influence of the common man.
Andrew Jackson.
It was not the era of the common. Although Jackson declared that he would help the common man, his policies worked to destroy the eastern elite and not help the common man. He vetoed the Maysville Road Bill that would have helped the common man to travel. His only reason for this could have been that he disliked Henry Clay who was from Kentucky. His policies worked to destroy the rich aristocrats of the east and not help the common man. C. 1820-1850
25 before the common era.
Man appeared in the era of Cenozoic.
If by "Common Era" you are referring to the era name system, then Christianity coincided with the beginning of the Common Era. In fact, the Common Era is also known as the "Christian Era" or "Current Era". The year 1 CE is the year in which a 6th century monk estimated that Jesus had been born when he created the Common Era calendar.
Common Era or Current Era, abbreviated CE, is a calendar era that is often used as an alternative naming of the Anno Domini era ("in the year of the Lord"), abbreviated AD. The system uses BCE as an abbreviation for "before the Common (or Current) Era" and CE as an abbreviation for "Common Era". As of 2016, it started 2016 years ago.
AD = CE or Common Era or Christian Era BC = BCE or Before Common Era or Before Christian Era
Common Era (CE) is the way atheists and people who do not want to recognise Jesus in dating the world, are replacing Anni Domini (AD) which is latin for "Year of our Lord", with Common Era
The Common Era is a period coinciding with the Christian era, which began 2,011 years ago. So we have been in that era for 2,011 years.
B.C.E (Before Common Era) C.E (Common Era)