Important National and International Days

The traditional Indian national calendar, as well as many regional lunisolar calendars, begins on the first day of the bright half of the month of Chaitra. This day usually falls in late March or early April and is celebrated under various names like Ugadi, Gudi Padwa, or Chaitra Navratri.

Ethiopia follows the Julian calendar for religious festivals, which places Christmas (known as Ganna or Genna) on January 7th. This celebration is marked by fasting, attending church services, and playing a traditional game also called Genna.

In Sweden, the Christmas season officially begins on December 13th with St. Lucia's Day, a festival of lights commemorating the martyr Saint Lucia. On this morning, the eldest daughter in the family typically dresses in a white gown with a red sash and wears a crown of lighted candles to serve traditional saffron buns to her family.

In northeastern regions of France, such as Alsace and Lorraine, Saint Nicholas Day on December 6th is a major holiday that is often celebrated more eagerly than Christmas itself. On this day, Saint Nicholas visits children to distribute sweets and gifts, accompanied by his companion, Pere Fouettard, who punishes naughty children.

October 10th can be written as 10/10 or 10.10. Since the metric system is entirely based on tens and powers of ten, this date is celebrated as Metric Day.

March 14th is written numerically as 3/14 in many countries. Since 3.14 is the most common approximation of the mathematical constant Pi, this day is celebrated globally as Pi Day.

World Photography Day is celebrated annually on August 19th, commemorating the invention of the Daguerreotype process in 1839. This date was chosen to honor photography's contribution to society and visual communication.

Indian Heritage Day in Jamaica is officially observed on May 10 to commemorate the arrival of the first East Indians.

Van Mahotsav is an annual tree-planting festival in India, celebrated in the first week of July.

Constitution Day, also known as Samvidhan Divas, is celebrated in India on 26 November to commemorate the adoption of the Constitution of India in 1949.

The International Day of the World's Indigenous Peoples is celebrated annually on August 9th to promote and protect the rights of the world's indigenous population.

World Day of Social Justice is observed annually on February 20 to promote social justice and address poverty and exclusion.

Sri Lanka gained independence from British rule on February 4, 1948.

World Nature Conservation Day is observed annually on July 28th to raise awareness about protecting natural resources and biodiversity. The day promotes conservation of flora and fauna and encourages sustainable practices. The other dates listed (April 30, May 30, July 25) are not correct.