International Talk Like a Pirate Day, a light-hearted pop culture observance, is celebrated each year on which of the following dates?

Introduction / Context:
This question belongs to the important-days section but focuses on a fun, non-official observance. International Talk Like a Pirate Day became popular through media and internet culture and is often asked in quizzes to test whether candidates can identify unusual but widely known commemorative days. It is not a serious political or health day, yet it appears frequently in general-knowledge question banks.

Given Data / Assumptions:

• The observance is International Talk Like a Pirate Day.
• Four dates are listed as options: December 11, September 16, March 8, and September 19.
• We must recognise on which of these dates people jokingly celebrate by speaking in stereotypical pirate style.

Concept / Approach:
The main approach is direct recall. International Talk Like a Pirate Day is widely recognised as falling on 19 September every year. It has been popularised by radio shows, online communities, and humour websites. The other dates in the options usually correspond to other observances: March 8 is well known as International Women's Day, while December 11 and September 16 are not associated with this particular fun day in standard GK references.

Step-by-Step Solution:
Step 1: Focus on the name of the observance: International Talk Like a Pirate Day. Step 2: Recall that this humorous observance is celebrated globally every year on 19 September. Step 3: Compare the remembered date with the options: December 11, September 16, March 8, and September 19. Step 4: Identify that September 19 exactly matches the known date. Step 5: Recognise that March 8 is famous for International Women's Day and does not match this pirate-themed day. Step 6: Conclude that the correct answer is September 19.

Verification / Alternative check:
You can confirm this by checking popular calendars of unusual observances or reliable websites that list fun international days. They consistently show 19 September as International Talk Like a Pirate Day. Even search engines and online encyclopedias associate this observance firmly with 19 September each year.

Why Other Options Are Wrong:
December 11: Not the standard date for International Talk Like a Pirate Day and is associated with other events in some calendars.
September 16: Close to the real date but still incorrect, making it a plausible distractor in competitive exams.
March 8: Known globally as International Women's Day, unrelated to pirate themed celebrations.

Common Pitfalls:
Candidates sometimes fall for nearby dates such as 16 September, especially when they remember only that the day is in mid or late September. Another pitfall is mixing this fun observance with more serious international days that fall in March or December. The best way to avoid confusion is to remember that this playful day is near the second half of September and fixed specifically on 19 September.

Final Answer:
International Talk Like a Pirate Day is celebrated each year on September 19.