The World Braille Day (WBD) is observed every year on January 4 to remember the birth anniversary of Louis Braille, the inventor of Braille – for the people with visual disabilities. Louis Braille was born on 4th January 1809 in the town of Coupvray in northern France. At the age of just 3, he lost his both eyes in an accident. This resulted into the invention of the 6 dots- which is popularly known as braille. The day is also observed to raise awareness on the importance of Braille for approximately 1.3 billion people living with some form of distance or near vision impairment. It is a means of realizing fully the human rights of visually-impaired and partially-sighted people, and bringing written language to the forefront as a critical prerequisite for promoting fundamental freedoms. Around the world, 39 million people are blind, and another 253 million have some sort of vision impairment.

The National Mathematics Day (NMD) is celebrated every year in India on December 22 to commemorate the birth anniversary of great mathematical genius Srinivasa Ramanujan. The day also recognizes his contribution to the world of mathematics, which includes mathematical analysis, number theory, infinite series, and continued fractions. The NMD was declared by the then Prime Minister Manmohan Singh in 2012 to mark the 125th birth anniversary of Ramanujan. Born in 1887 in Erode, Madras Presidency (now Tamil Nadu), Ramanujan’s affinity for Mathematics was such that he failed in college exams because of his negligence for non-mathematical subjects. However, his talents were recognized by a mathematician at Madras Port Trust were Ramanujan had started working as a clerk in 1912. In 1917, Ramanujan was elected to be a member of the London Mathematical Society. In 1918 he also became a Fellow of the Royal Society, becoming the youngest person to achieve the feat. But due to ill health, he died in 1920 at the age of 32.

Every Year 24th December is observed as National Consumer Day with a specific theme in India. On this day the Consumer Protection Act, 1986 had received the assent of the President.