The first year of AD is the first year of Yuan Dynasty in the Western Han Dynasty. A.D. is a legend of chronology. Jesus was born in a stable in Bethlehem, Palestine. His mother's name was Mary. The Christian church later determined that Jesus' birthday was 65438+February 25th, which was designated as "Christmas Day". The current world calendar year is based on the legendary "Birth of Jesus" year. Later generations called the year before this year BC 1 year.

Liu Kan (9th BC-4th February, 6th AD), formerly known as Liu, grandson of Liu Shi, son of Xiaozhongshan Wang Liuxing, was the14th emperor of the Western Han Dynasty, and reigned from 65438 BC to 6th AD. After Emperor Aidi died in August/KLOC-0 BC, Wang Mang refused to establish an older monarch for the convenience of playing politics.

: Han dynasty (202-220 BC? ) is a unified dynasty after the Qin Dynasty, divided into the Western Han Dynasty and the Eastern Han Dynasty. It lasted 29 emperors and enjoyed the country for 407 years. Because the royal family is surnamed Liu, it is also called Liu Han, which is one of the most powerful times in China.