Oct.1st is the national day of China.In 1949.Oct.1st,was the first year of the national day of China.十月一日是中国的国庆节，在1949年十月一日，是中国的第一个国庆节。
国庆节由来英语
中文:
10月1日是我国的国庆节. 中国人民经过一百多年的英勇奋战，在中国共产党的领导下，取得了人民革命的伟大胜利。在1949年10月1日毛主席宣告中华人民共和国成立，并宣布：”中国人民从此站起来了！”这是一个最伟大的时刻，中国革命进入了历史新阶段．
中国人民政治协商委员会第一次会议规定每年10月1日为国庆日。由此，每年的10月1日就成为全国各族人民隆重欢庆的节日了.
英文：
October 1 is the National Day of our country.
0ur Chinese people were fighting courageously for more than 100 years, and obtained the great victory of people's revolution under the leadership of Communist Party of China. On October 1,1949, Chairman Mao announced establishment of the People's Republic of China, and declared:"From now on,the Chinese people stand up!"
This was the greatest moment, Chinese revolution entered a new period in its history.
The first meeting of Chinese People's Political Consultative Committee then decided:Every October 1 is our National Day.
Therefrom,every Oct.1 is the holiday for all Chinese peoples to celebrate ceremoniously.
各国国庆节的由来
国庆节是每个国家的重要节日，但名称有所不同。许多国家叫“国庆节”或“国庆日”，还有一些国家叫“独立日”或“独立节”，也有的叫“共和日”、“共和国日”、“革命日”、“解放日”、“国家复兴节”、“宪法日”等，还有直接以国名加上“日”的，如“澳大利亚日”、“巴基斯坦日”，有的则以国王的生日或登基日为国庆日，如遇国王更替，国庆的具体日期也随之更换。
每逢国庆日，各国都要举行不同形式的庆祝活动，以加强本国人民的爱国意识，增强国家的凝聚力。各国之间也都要相互表示祝贺。逢五逢十的国庆日，有的还要扩大庆祝规模。为庆祝国庆日，各国政府通常要举行一次国庆招待会，由国家元首、政府首脑或外交部长出面主持，邀请驻在当地的各国使节和其他重要外宾参加。但也有的国家不举行招待会，如美国、英国均不举行招待会。
译文：
National Day material -- various countries National Day origin The National Day is each national important holiday, but the name has differently. Many countries are called "the National Day" or "the National Day", but also has some countries to call "the independent date" or "the independent festival", also some calling "republican date", "republic date", "revolutionary date", "liberation date", "national revival festival", "constitution date" and so on, but also has directly to the country's name adds on "the date", like "the Australian date", "the Pakistani date", some take king's birthday or ascends the base date as the National Day, in case king changes, National Day specific date also along with it replacement. Every time meets the National Day, the various countries all must hold the different form celebration, strengthens the our country people's patriotic consciousness, the enhancement country cohesive force. Between the various countries also all must mutually express the congratulation. Meets five meets for ten National Days, some also must expand the celebration scale. In order to celebrate the National Day, the various countries' government usually must hold a time of National Day reception, by the head of state, the head of government or foreign minister acts on behalf of to manage, the invitation is stationed at the locality the various countries' diplomatic agent and other important foreign guests participates. But also has the country does not hold the reception, like US, England do not hold the reception.