Important Days & Dates Quiz: Important Days in March and April

The United Nations observes this day to draw attention to fresh water and the management of water resources, and in India the same date is also kept as Bihar Diwas, which makes it doubly useful for examinations.

The day grew out of the movements for women's rights in the early twentieth century and is now observed across the world, with the United Nations adopting a different subject for it each year while the date itself stays fixed.

The constitution of the organisation took effect on 7 April 1948, and that date was chosen for the annual observance, which has been held since 1950 with a different subject each year.

The three revolutionaries were hanged in Lahore jail on 23 March 1931 in connection with the Lahore conspiracy case, and the day is observed in their memory across the country.

The United Nations chose this date because the international convention on trade in endangered species of wild fauna and flora was signed on 3 March, and the day is used to draw attention to wild animals and plants and to the trade that threatens them.

He presented his finding to an audience of physicians in Berlin on 24 March 1882, and identifying the organism opened the way to diagnosis and eventually to treatment of a disease that was then a leading cause of death.

The day is observed across the country and is a public holiday in many states.

The amendment of 1992 gave panchayati raj institutions constitutional standing by adding Part IX and the Eleventh Schedule, and it took effect on 24 April 1993, which is why that date was chosen for the observance.

The day was proposed by the International Council on Monuments and Sites and later approved by UNESCO, and it is used to draw attention to the protection of monuments, historic places and cultural landscapes.

Earth Day began in the United States in 1970 as a demonstration in support of environmental protection and is now observed in many countries as a day for action on pollution, climate and conservation.

The day recalls the speech of 1962 in which the rights of the consumer were first set out formally before the United States Congress, and it is now used worldwide to press for fair treatment of buyers.

The day marks the first voyage of an Indian owned merchant ship from Mumbai to Britain in 1919, a landmark in the history of Indian shipping, and it is observed to recognise the role of the merchant navy in trade.