Holidays and Observances:

1: International Labor Day (1 day off). On May 1, 1886, 800,000 workers from all trades and factories throughout the U.S. went on strike in support of the eight-hour workday. In Chicago, many workers and police were killed in the confrontation during the strike. On July 14, 1889, with a proposal by an American delegate, the International Labor Congress in Paris officially adopted May 1 as a workers' holiday and since then May Day has served as a date for international working class solidarity.

3: World Press Freedom Day, proclaimed by the United Nations General Assembly in 1991 as a day "to celebrate the fundamental principles of press freedom; to evaluate press freedom around the world, to defend the media from attacks on their independence and to pay tribute to journalists who have lost their lives in the exercise of their profession." Press freedom is considered to be a cornerstone of human rights and a guarantee of other freedoms.

4: Chinese Youth Day, established in December 1949 by the Government Administration Council of China to commemorate the 1919 student demonstration against foreign aggression.

4: Worship at Genghis Khan's Tomb, held by the Mongolian ethnic minority four times a year, on the 21st of the 3rd lunar month, 15th of the 5th lunar month, 12th of the 9th month and 3rd of the 10th month. Activities on the day of worship also include horseracing.

4: World Asthma Day, an annual event organized by the Global Initiative for Asthma (GINA) in collaboration with health care groups and asthma educators to raise awareness about asthma and improve asthma care throughout the world. It takes place each year on the first Tuesday in May.

6: Birthday of Mazu, goddess of the sea. In the days immediately before and after the 23rd day of the 3rd lunar month, people in southeast China's coastal areas honor the goddess with celebrations and rituals.

8: World Red Cross Day.

9: Mother's Day, observed on the second Sunday in May.

12: International Nurses Day is celebrated around the world every May 12, the anniversary of Florence Nightingale's birth.

15: International Day for Families. This day highlights the importance of families. It aims at fostering equality, bringing about a fuller sharing of domestic responsibilities and employment opportunities. The programs undertaken to commemorate the day, work towards supporting families in the discharge of their functions. They tend to promote the inherent strengths of families, including their great capacity of self-reliance, and stimulate self-sustaining activities.

16: National Day for Persons with Disabilities, observed on the third Sunday in May.

17: World Telecommunication Day.

18: International Museum Day. It has been celebrated all over the world since 1977, in the spirit of the motto: “Museums are an important means of cultural exchange, enrichment of cultures and development of mutual understanding, co-operation and peace among peoples.” The event provides the opportunity for museum professionals to meet the public and alert them to the challenges that museums face if they are to be "an institution in the service of society and of its development".

20: National Nutrition Day for Students.

21: Yanu's Day. On the 8th day of the 4th lunar month, the Miao people of south and central China commemorate their hero, Yanu. Major activities include dancing to drum and lusheng (a type of mouth organ), climbing blade ladders and eating glutinous rice.

22: International Day for Biological Diversity, proclaimed by the United Nations, aims to increase understanding and awareness of biodiversity issues.

31: World No-Tobacco Day. The World Health Organization annually sponsors World No-Tobacco Day to call attention to the seriousness of the impact of tobacco and to promote a tobacco-free environment.