International Days

World Environment Day is officially observed every year on 5th June to raise awareness about environmental issues globally.

The first Earth Day was observed on April 22, 1970, marking the beginning of the modern environmental movement. Although the question states April 20, the year 1970 is correct as the inaugural Earth Day year.

World Braille Day is observed every year on January 4th to raise awareness about the importance of Braille as a means of communication for blind and partially sighted people. This date marks the birthday of Louis Braille, the inventor of the Braille system.

World Environment Day is officially observed every year on 5th June to raise awareness and promote action for environmental protection globally.

International Children's Day is widely observed on 1st June in many countries, including Pakistan. The date 20 November is associated with Universal Children's Day, established by the UN, but International Children's Day is celebrated on 1st June.

World Inventors' Day is celebrated annually on November 9th to honor inventors and their contributions to society. This date was chosen to commemorate the birthday of the famous inventor Thomas Edison.

World Tuberculosis Day is observed annually on 24th March to raise public awareness about the devastating health, social, and economic consequences of tuberculosis (TB).

World Teachers' Day was inaugurated by UNESCO in 1994 to celebrate and recognize the role of teachers worldwide.

World Animal Day is observed annually on October 4th. It was originally planned for October 4th to align with the feast day of Saint Francis of Assisi, the patron saint of animals, and this date has been universally accepted since 1931. Therefore, the correct answer is October 4, which corresponds to option C.

The International Day of Non-Violence is observed annually on 2nd October, which is the birthday of Mahatma Gandhi, a global symbol of non-violence.

World Post Day is celebrated annually on 9 October to mark the anniversary of the Universal Postal Union's establishment in 1874.

In Japanese, the days of the week are named after elements and celestial bodies. Tuesday is 火曜日 (Kayōbi), which translates to "Fire Day." This is because 火 (ka) means fire.

International Human Solidarity Day is celebrated annually on 20th December, as designated by the United Nations General Assembly resolution 60/209. This day promotes solidarity in addressing global challenges and is recognized worldwide on 20 December each year.

International Tea Day was originally celebrated on 15 December each year since 2005 in tea-producing countries such as India, Sri Lanka, Nepal, and others. However, in 2019, the United Nations General Assembly officially adopted International Tea Day and designated 21 May as the official worldwide observance date. Since the question asks for the date in December and the options only include December dates, the correct answer is 15th December (option C), which is the original date celebrated by many countries before the UN adoption.

International Monkey Day, also known as World Monkey Day, is celebrated annually on December 14th. This date was established in 2000 by artists Casey Sorrow and Eric Millikin and has since become a global unofficial holiday to raise awareness about monkeys and other primates. Multiple authoritative sources including Wikipedia, World Animal Protection, and other educational sites confirm December 14th as the correct date.

The International Day of Forests is observed every year on March 21. This day was proclaimed by the United Nations General Assembly in 2012 to raise awareness about the importance of all types of forests. Multiple authoritative sources, including the United Nations and the Food and Agriculture Organization (FAO), confirm that March 21 is the official date for this observance.

8 March is internationally recognized as International Women's Day, a day celebrating the social, economic, cultural, and political achievements of women.

26th January is celebrated as Republic Day in India to mark the date on which the Constitution of India came into effect in 1950, making India a sovereign republic.

The International Day for the Elimination of Racial Discrimination is observed annually on 21 March to commemorate the Sharpeville massacre in 1960 and to promote efforts to eliminate racial discrimination worldwide.

World Autism Awareness Day is internationally recognized and observed annually on April 2nd to raise awareness about autism spectrum disorders.

The International Day for the Elimination of Violence against Women is observed annually on November 25th, as designated by the United Nations to raise awareness and promote action to end violence against women worldwide.

World Immunization Week is celebrated in the last week of April, but World Immunization Day is observed on November 15 to raise awareness about the importance of vaccines. Therefore, November 15 is the correct date.

International Anti-Corruption Day is observed annually on 9th December to raise awareness about corruption and promote anti-corruption measures worldwide.

The Maldives observes its National Day on January 1st, marking the day of independence from British rule. The other countries listed have their national days on different dates.

World UFO Day is officially celebrated on July 2nd each year to raise awareness about unidentified flying objects and extraterrestrial life. This date is widely recognized internationally.