Answer: 21 August
Notes:
- World Senior Citizen Day is observed on August 21.
- It's an effort by the young to acknowledge the problems that our elders face due to their age and raise awareness about those issues.
- The day was first proposed by former US President Ronald Reagan in 1988.
- On August 21 that year, he officially commemorated the first National Senior Citizens Day. Two years later, the United Nations General Assembly adopted it as a global celebration.
