World Introvert Day is an opportunity for people worldwide to better understand and appreciate introverts. The first World Introvert Day was held in 2011. World Introvert Day started when psychologist and author Felicitas Heyne published this blog post calling for a day for us quiet ones. Let's face it: introverts are a misunderstood minority. We live in an extrovert world and introverts often appear to be arrogant and strange. Which they aren't. Introverts just work differently.