Please tell me which days the following festivals fall on, and what is their respective commemorative significance?

World Health Day, April 7: The purpose of World Health Day is to draw the attention of countries around the world to health issues, and to mobilize people from all over the world to care about and improve the current health situation and improve human health. . During World Health Day, all member states of the World Health Organization, including China, hold celebrations to promote and popularize relevant health knowledge and improve people's health.

World Environment Day June 5: The role of World Environment Day is to arouse people all over the world to pay attention to protecting the environment on which human beings live, and to consciously take actions to participate in protecting the environment. At the same time, it requires governments and United Nations agencies to Contribute to promoting the process of environmental protection.

International Anti-Drug Day, June 26: Since the 1980s, drug abuse has become increasingly prevalent around the world, and drug smuggling has become increasingly serious. Faced with this severe situation, From June 12 to 26, 1987, the United Nations held a Ministerial Conference on Narcotic Drug Abuse and Illicit Trafficking in Vienna, attended by more than 3,000 representatives from 138 countries. The conference proposed the slogan "Love life, don't take drugs". Participants at the conference The representatives unanimously agreed to designate June 26 every year as the "International Anti-Drug Day" to draw the attention of countries around the world to the drug problem and call on people around the world to work together to resist the harm of drugs. In December of the same year, the 42nd United Nations General Assembly adopted Resolution, decided to designate June 26 of each year as the "International Day against Narcotic Abuse and Illicit Trafficking" (i.e. "International Anti-Drug Day").

International Day of Peace September 21: 1981 , the United Nations General Assembly announced that the opening day of the regular session of the General Assembly in September will be officially designated as the International Day of Peace for all countries and peoples to commemorate and strengthen the ideal of peace within themselves and among each other. On September 7, 2001, the United Nations General Assembly decided , since 2002, September 21st of each year has been designated as the International Day of Peace. Everyone should celebrate and commemorate peace on this day, and proposed to declare that thereafter, the International Day of Peace should become a global day of ceasefire and non-violence, and invited All countries and peoples cease hostilities on this day. The resolution also invites member states, organizations of the United Nations system, regional organizations and non-governmental organizations to celebrate the International Day of Peace and cooperate with the United Nations to achieve a global ceasefire.

World Poverty Eradication Day, October 17: In order to draw the international community's attention to the issue of poverty, mobilize countries to take specific poverty alleviation actions, and publicize and promote poverty eradication work around the world, on December 22, 1992, the 47th United Nations General Assembly held the ceremony in accordance with the United Nations Resolution According to the recommendations of the Second Committee (Economic and Financial), October 17 of each year is designated as the "International Day for the Eradication of Poverty" (International Day for the Eradication of Poverty), requiring member states to publicize and promote the work of eliminating poverty around the world, and take specific measures Poverty Alleviation Action.

World Population Day, July 11: On July 11, 1987, a baby in Yugoslavia was born, who was symbolically recognized by the United Nations as the 5 billionth person on earth, and announced the earth’s population Breaking through the 5 billion mark. The United Nations Population Activities Fund (UNEPA) initiated this day as "World Population Day of 5 Billion". The United Nations Population Fund decided to designate July 11 every year as "World Population Day" from 1988. to raise people's attention to world population issues.

According to the recommendations of the 36th session of the Board of Governors of the United Nations Development Program, in order to attract the attention of governments and people around the world to population issues, the United Nations Population Fund requires governments and civil society organizations to carry out "World Population Day" during this period. "Activity. Since then, every year on July 11, countries around the world have launched promotional activities.