International Olympic Day is observed every year on which date to promote the Olympic spirit and sports participation worldwide?

Introduction / Context:
International Olympic Day is a global observance connected to the Olympic movement and the values of sportsmanship, fitness, and international peace. It marks the birth of the modern Olympic Games and the creation of the International Olympic Committee. Questions about its date regularly appear in general knowledge exams because they combine sports awareness with important days and dates, which form a standard section of competitive exam syllabi.

Given Data / Assumptions:

• The question asks for the fixed date of International Olympic Day.
• It clearly refers to an annual observance connected with the Olympic movement.
• The options list four different calendar dates spread across the year.
• We assume the student is expected to recall the correct date based on standard GK references.

Concept / Approach:
International Olympic Day commemorates 23 June 1894, the day when the International Olympic Committee was founded in Paris. To answer such questions, the candidate should link the origin story of the modern Olympics with the corresponding commemorative date. The concept is simple factual recall: International Olympic Day is celebrated on 23 June every year to spread awareness about the importance of physical activity and the Olympic ideals of excellence, friendship, and respect.

Step-by-Step Solution:
Step 1: Note that the observance mentioned is International Olympic Day, not the opening of a specific Olympic Games. Step 2: Recall that this day commemorates the founding of the International Olympic Committee in June 1894. Step 3: Remember from standard GK that the fixed date assigned to this observance is 23 June. Step 4: Compare this remembered date with all given options in the question. Step 5: Identify that option D, which is 23 June, exactly matches the recognised date for International Olympic Day.

Verification / Alternative check:
Verification can be done by consulting Olympic related official websites, sports GK books, or monthly current affairs magazines, all of which repeatedly mention that International Olympic Day is observed on 23 June. Many schools and sports associations also conduct Olympic Day runs and events around this date, which further helps in memorising the association between 23 June and the Olympic movement. Remembering that it falls in late June rather than during the usual July or August period of the actual Games is a useful mental check.

Why Other Options Are Wrong:
Option A, 16 August, does not correspond to any official Olympic related day in the standard list of international observances.
Option B, 2 February, is not linked to the Olympic movement and therefore is incorrect in this context.
Option C, 18 December, also has no direct connection with the origin of the modern Olympics or the International Olympic Committee and is therefore not the right date.

Common Pitfalls:
Students may confuse International Olympic Day with the dates of specific Olympic Games or with National Sports Day in their own country. Another frequent mistake is to think that the day must fall close to the starting date of any particular Olympic event. However, International Olympic Day is anchored only to the founding of the International Olympic Committee, which is why it is fixed on 23 June every year. Regular revision of a table of important days grouped by month can help avoid such errors.

Final Answer:
International Olympic Day is observed every year on 23 June.