It's an astronomical event, it's day of festivity since antiquity and and international day. How much do you really know about it? Let's put your knowledge to the test ...
Answer: Gross National Happiness
More information: The Buddhist kingdom of Bhutan is responsible for this development - Gross National Happiness - which has been adopted in various countries and cities around the world and laid the foundation for the International Day of Happiness.
More information: The Happiness Development Movement began in 1972 through a philosophy introduced by the king of Bhutan, the same country that initiated the resolution which led to the establishment of the International Day of Happiness.
More information: The HappinessDay.org website is managed by the United Nations in conjunction with Jayme Illien, founder of the International Day of Happiness.
More information: Since its inception in 2017, the World Happiness Summit has taken place annually in Miami, Florida.
Answer: Mother's Day
More information: Beginning in 1956, Mother's Day has been observed on the same date as the vernal equinox in many Arab countries due to the clear association between motherhood and fertility/Spring.
Answer: Sun Outages
More information: Sun outages occur before the vernal equinox in the Northern Hemisphere and after the vernal equinox in the Southern Hemisphere. This is due to satellites being directly positioned between the Earth and the sun.
More information: The African nation of Burundi, largely due to its issues with poverty and violence, holds the unenviable position of coming in last on the 2018 World Happiness Report.
More information: UN resolution 66/281 recognized well-being as a universal goal and aspiration alongside happiness.
More information: Currently, the sun appears to be within the constellation Pisces during the vernal equinox. However, due to shifts in the Earth's axis this changes every few thousand years, so in 2597 during the March equinox, it will instead appear to be part of Aquarius.
More information: The sun travels northward across the equator (from south to north) during the March equinox, while it does the opposite during its autumnal counterpart.