New Year's Day is the first day of every new year. "Yuan" means beginning, and "Dan" refers to the time of dawn, or more generally, the daytime. New Year's Day is the first day of the start of a year. In the relics of Dawenkou culture discovered in our country, a picture was found depicting the sun rising from the top of a mountain, with clouds swirling in the middle. After examination, this was identified as the oldest writing of the character "Dan" in China. Later, on the inscriptions of Shang Dynasty bronze vessels, a simplified version of the character "Dan" appeared. The character "Dan" is represented by a round sun. The horizontal stroke below the "sun" represents the horizon, symbolizing the sun slowly rising above the horizon. Xiao Ziyun, a literary historian of the Southern Dynasty, recorded in his work "Jieya": "The four seasons renew on New Year's Day, and myriad blessings begin anew today." It seems that at that time, "Dan" was already regarded as the start of a day, extended to mean the first day of the year. In Volume One of Wu Zimu's "Menglianglu" from the Song Dynasty, under the entry for "First Month," it states: "The first day of the first month is called New Year's Day, commonly known as the New Year." Among all seasonal festivals, this is the first one. In the "Book of Documents: The Classic of Yao," New Year's Day is referred to as "Yuanri"; in Cui Yuan's "Three Sons' Hairpin Inscription" from the Han Dynasty, it is called "Yuanzheng"; in Ge Cheng's "Yangdu Fu" from the Jin Dynasty, it is referred to as "Yuanchen"; in a Northern Qi dynasty piece titled "Yuanhui Daxiangge Huangxia Ci," it is called "Yuanchun"; and in Emperor Dezong Li Shi's poem "Returning to Court on New Year's Day and Observing the Military Returning to Camp," it is referred to as "Yuanshuo." However, what the ancients in our country referred to as New Year's Day was not January 1st of the Gregorian calendar, but rather the first day of the first lunar month, also known as "Yuanri." Historically in China, years were not marked according to the Christian era, but each emperor and dynasty had their own independent way of marking years, based on the lunar calendar. The current Gregorian calendar system reflects Western calendrical practices, which takes the birth of Christ as the first year of the Christian era. It was only after the establishment of the Republic of China that China gradually began to adopt the Gregorian calendar system. Therefore, the first day of the first lunar month, also known as the Spring Festival, has a more festive atmosphere than New Year's Day in the Gregorian calendar. In various Chinese dialects, there are different names for this day: some call it "Dachunyi," others "Datianyi," and still others "Nianchuyi," generally it is also called "Zhengchuyi."