World Health Day, coordinated by the World Health Organization (WHO), is observed globally on which of the following dates each year?

Introduction / Context:
This question checks knowledge of one of the most important global health observances. World Health Day is organised by the World Health Organization (WHO) to draw attention to specific health themes of global concern. Exams frequently ask about this date because it connects basic health awareness, international organisations, and important days in one simple fact-based question.

Given Data / Assumptions:

• The observance is World Health Day.
• All options are dates in April: 7, 14, 21, and 28.
• We must identify on which specific date in April World Health Day is celebrated every year.

Concept / Approach:
World Health Day marks the anniversary of the founding of the World Health Organization, which came into force on 7 April 1948. To honour this, WHO and its member countries observe World Health Day every year on 7 April. Each year focuses on a different health theme, but the date remains constant. Therefore, the correct approach is to recall that 7 April and WHO are directly linked.

Step-by-Step Solution:
Step 1: Identify that the question is about World Health Day, a global health observance. Step 2: Recall that WHO was founded on 7 April 1948. Step 3: Recognise that to commemorate this founding, World Health Day is observed on 7 April every year. Step 4: Compare this memory with the options: April 7, April 14, April 21, and April 28. Step 5: Confirm that April 7 is the exact date for World Health Day. Step 6: Conclude that the correct option is April 7.

Verification / Alternative check:
If you check WHO's official website or any reliable health calendar, you will see that World Health Day is fixed on 7 April each year. National health ministries and schools also observe health-related events on this date, confirming that this is the accepted and internationally recognised date.

Why Other Options Are Wrong:
April 14: Not associated with World Health Day in WHO calendars.
April 21: Used for other observances but not for this specific health day.
April 28: Observed in some places as World Day for Safety and Health at Work, but that is a different observance from World Health Day.

Common Pitfalls:
Students sometimes misremember the exact date and only recall that World Health Day is in early or mid-April. To avoid confusion, remember the link between the founding date of WHO and the observance. Fixing the pair “7 April – World Health Day” in memory, with WHO as the key, makes it easy to recall in exams.

Final Answer:
Thus, World Health Day is observed globally on April 7 each year.