Important Days 20-21 Aug: Sadbhavana Diwas, World Mosquito Day
Why in the news
Four observances fell on 20 and 21 August 2025, and each is a frequent static-GK question.
Key facts
- Sadbhavana Diwas (20 August): promotes harmony among religions and communities; the Rajiv Gandhi National Communal Harmony Award is linked to it.
- World Mosquito Day (20 August): on this date in 1897 Ross found the malaria parasite in a female Anopheles mosquito at Secunderabad; he won the 1902 Nobel Prize in Physiology or Medicine.
- World Senior Citizens Day (21 August): established by a 1988 US presidential proclamation; the UN’s own day for older persons is 1 October.
- Terrorism victims remembrance (21 August): the UN General Assembly proclaimed it in December 2017.
| Day | Date | Detail |
|---|---|---|
| Sadbhavana Diwas | 20 Aug | 81st birth anniversary of Rajiv Gandhi; first observed 1992 |
| World Mosquito Day | 20 Aug | Ross, 1897; observed by LSHTM since 1930 |
| World Senior Citizens Day | 21 Aug | US proclamation 1988 |
| Victims of Terrorism Day | 21 Aug | 8th observance |
About the observances
- Sadbhavana (goodwill) Diwas was first observed on 20 August 1992.
- World Mosquito Day has been organised by the London School of Hygiene and Tropical Medicine since 1930.
- The UN General Assembly proclaimed the terrorism victims day through resolution A/RES/72/165 in December 2017.
Exam angle
- Pair each day with its date and origin.
- Ross and Secunderabad (1897) is a favourite.
- Remember the 8th observance and the theme of the victims of terrorism day.