What year is the first year of the Common Era, and what year is the first year of the Common Era?

In 1 AD, the millennium should actually be 2001

It's the first year.

It's A.D. 0.

The year Jesus was born was the first year of the Common Era...

The first year of the Common Era was the first year of Emperor Ping of the Han Dynasty in China, which belonged to the Western Han Dynasty.

The year of Jesus' birth is used as the year of the first year, and the year before it is called the first year of the B.C.

Every decade is called an era, for example, 2x years are the twenties, 9x years are the nineties, etc. However, the first twenty years of each hundred years are generally not called "years", but the beginning of a certain century.

Every hundred years is called a century, but the first century and the first century B.C. are 99 years, i.e. 99 years A.D. is the first century, 100 years 199 is the second century, 99 B.C. 1 year is the first century B.C., and so on.

At present, most countries in the world use the AD chronology, and China has adopted the AD year since the founding of the People's Republic of China in 1949.

The first year of the Common Era was the Western Han Dynasty in China. According to the Ganzhi chronology, the corresponding time of 1 A.D. is the Xinyou year, and the corresponding time is the first year of the Han Ping Emperor of the Western Han Dynasty.

The Western Han Dynasty was a unified dynasty in Chinese history, with a total of 12 emperors and 210 years of reign, that is, from 202 BC to 8 AD, also known as the former Han Dynasty and the Eastern Han Dynasty. At the end of the Qin Dynasty, the world rose up, after the dispute between Chu and Han, Liu Bang defeated Xiang Yu, in 202 BC Liu Bang was called the emperor in Shandong Dingtao, the capital of Chang'an, and the establishment of the Western Han Dynasty.

A brief introduction to other situations in the Western Han Dynasty.

During the Western Han Dynasty, martial arts flourished, large-scale territory was expanded, and the prestige of the Han Dynasty was far and wide. In the second year of Yuan Shuo, Wei Qing was sent north to attack the Xiongnu to recover Henan, and Shuofang County and Wuyuan County were placed.

In the second year of Yuanzhen, the Han general Huo Qu was sick out of Longyou to destroy the Xiongnu tribe living in the Hexi Corridor, and set up Wuwei County and Jiuquan County with its place, and then divided Zhangye County and Dunhuang County; In the sixth year of the Yuan Dynasty, he conquered the Nanyue Kingdom and occupied Hainan Island, and set up nine counties of Nanhai, Cangwu, Yulin, Hepu, Jiaolu, Jiuzhen, Rinan, Zhuwei and Dan'er in the place, and set up five counties of Wudu, Qike, Yueshan, Shenli and Wenshan in the southwest.

A.D. 1) is the first year of the Yuan Dynasty.

On the first day of September in the second year of Yuanshou (October 17, 1 BC), Liu Yin was the emperor and was the Emperor Ping of Han.

The first year of A.D. was 1 A.D.

At the end of the Western Han Dynasty, the first year of Emperor Ping of the Han Dynasty.