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 ...
More information: Easter is traditionally celebrated on the Sunday after the first full moon that occurs on or after the March equinox.
Answer: New York
More information: The International Day of Happiness was launched in 2013 by Ndaba Mandela, the late Nelson Mandela's grandson and Chelsea Clinton, daughter of Bill and Hillary Clinton, at the TedXTeen conference in New York City.
More information: Since its inception in 2017, the World Happiness Summit has taken place annually in Miami, Florida.
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: This resolution was put forth by the Kingdom of Bhutan, a landlocked country located in South Asia.
More information: The autumnal equinox occurs in September and marks the beginning of the Fall season (in the Northern Hemisphere).
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 sun travels northward across the equator (from south to north) during the March equinox, while it does the opposite during its autumnal counterpart.
Answer: "Equal night"
More information: Equinox translates into English as "equal night", which alludes to the fact that day and night hours are virtually the same length during these occasions.
More information: The sun passes directly over the Earth's equator during an equinox.