Important National and International Days

The International Day for the Elimination of Racial Discrimination is observed annually on March 21, commemorating the 1960 Sharpeville massacre in South Africa. The other dates are unrelated to this UN observance.

World Environment Day was established by the United Nations in 1973 and has been celebrated annually on June 5th since 1974. It serves as a global platform for environmental awareness and action.

The Cricket World Cup 2011 opening ceremony was held on February 17, 2011, two days before the tournament's first match (India vs Bangladesh on February 19). The ceremony took place in Dhaka, Bangladesh, one of the three host nations alongside India and Sri Lanka. It was a grand celebration of cricket in the subcontinent.

World Diabetes Day is observed globally on November 14th each year. It was established in 1991 by the International Diabetes Federation and WHO to raise awareness about diabetes.

World Disability Day is observed annually on December 3rd to promote understanding and awareness of disability issues and mobilize support for the dignity, rights, and well-being of persons with disabilities. It was proclaimed by the United Nations General Assembly in 1992.

World AIDS Day is observed globally on December 1st since 1988 to raise awareness about HIV/AIDS, honor those who have died from the illness, and show support for those living with it. It was the first-ever global health day.

World Tuberculosis Day is observed on March 24th to commemorate the date in 1882 when Dr. Robert Koch announced his discovery of the tuberculosis bacterium. This day raises awareness about TB's global health impact and prevention efforts.

International Literacy Day is celebrated annually on September 8th, proclaimed by UNESCO in 1966. The day aims to highlight the importance of literacy for individuals, communities, and societies worldwide.

The first self-sustaining nuclear chain reaction was demonstrated on December 2, 1942, not October 3rd. This historic event occurred at the University of Chicago under Enrico Fermi. The other events (Cook in Alaska 1778, Thanksgiving declaration 1863, Mickey Mouse Club debut 1955) did occur on October 3rd.

Find the event NOT on June 3rd. C-SPAN began regular TV coverage of US Senate sessions in June 1986, but not specifically on June 3rd. The other events are correctly dated: George V's birth (June 3, 1865), K.M. Panikkar's birth (June 3, 1895), and ESPN's College World Series (June 3, 1980).

Boxing Day is celebrated on December 26 in the UK, Canada, Australia, and other Commonwealth countries. If it falls on a weekend, it's observed on the following weekday. Traditionally, it was when servants and tradespeople received gifts ('Christmas boxes') from their employers.

Chinese New Year is the most important traditional Chinese holiday, celebrated on the first day of the lunar calendar (sometime between January 21 and February 20). The question correctly identifies this as the answer among the options provided.

Thanksgiving is celebrated on the fourth Thursday of November in the United States and originated with the Pilgrims' harvest feast in 1621. The holiday commemorates the Pilgrims' first successful harvest and their feast with the Wampanoag people.