Chichen Itza was constructed so that on the spring and autumn equinox it creates the image of a snake slithering down the pyramid to honor the Mayan deity Kukulan, the Feathered Serpent. en.wikipedia.org/wiki/Kukโ€ฆ
The 3rd generation Chevrolet Equinox was unveiled on September 22, 2016, the date of the autumnal equinox. en.wikipedia.org/wiki/Cheโ€ฆ
Today I learned about World Sleep Dayยฎ which is designed to raise awareness of sleep as a human privilege that is often compromised by the habits of modern life. It is is held on the Friday before Spring Vernal Equinox of each year. Future date will be: Friday, March 13, 2020. worldsleepday.org/
Easter always falls after the first full moon after the vernal equinox. almanac.com/content/when-โ€ฆ
Phoenix is the only city to have a complete "sports equinox", when all four major sports teams from a city play on the same day. On November 4th, 2001 the Cardinals (NFL), the Coyotes (NHL), and the Suns (NBA) all lost, while the Diamondbacks won game 7 of the World Series. fivethirtyeight.com/datalโ€ฆ
Groundhog Day celebrates one of the four so-called "cross-quarter days," which mark the midpoints between the solstices and equinoxes. February 2 falls approximately midway between the winter solstice and the vernal equinox. astronomy.com/news/2017/0โ€ฆ
The goal of the Gregorian Calendar (1582) was to make Easter closer to the vernal equinox; that Protestant countries (eg Germany, UK) delayed adopting it for centuries because they considered it a Catholic plot; and that it's off by 26 seconds per year, causing a several-hour discrepancy. history.com/news/6-thingsโ€ฆ
The vernal equinox and the full moon are on the same day in 2019 almanac.com/content/firstโ€ฆ
Easter is the first Sunday AFTER the first full moon AFTER the March equinox. independent.co.uk/news/ukโ€ฆ
In the weeks around Saturn's equinox every 15 years, its rings become essentially invisible as the only light that shines on them is reflected off the planet itself photojournal.jpl.nasa.govโ€ฆ
In Australia seasons are based on the start and end of months rather than the equinox, e.g. Summer is strictly Dec - Jan australia.gov.au/about-auโ€ฆ
Easter, and therefore also Whistsun, Ascension and (Dutch) Carnaval, depends on the first full moon after the spring equinox, so after March 21. Easter can be as early as March 22 and April 25 at its latest. christianitytoday.com/hisโ€ฆ
"'Spring is fireball season,' says Bill Cooke of NASA's Meteoroid Environment Center. 'For reasons we don't fully understand, the rate of bright meteors climbs during the weeks around the vernal equinox.'" science.nasa.gov/science-โ€ฆ
Spring gets 30 seconds shorter every year due to a wobble in the Earth's axis. Astronomer L. Gerstman: โ€œThe shift in the time of the vernal equinox becomes more apparent. Spring will be shortest in the year 8680, (88.5 days), or 4 days shorter than this yearโ€™s.โ€ After that it will lengthen again smithsonianmag.com/smart-โ€ฆ
In 1582, Pope Gregory XIII decreed that 10 days be skipped in October so that the next Easter would fall on March 21st, the Spring Equinox, thus creating the Gregorian Calendar which we follow today. historyextra.com/article/โ€ฆ
Easter Day is determined by an astronomical event (the Sunday after the first full moon of the Vernal Equinox). people.howstuffworks.com/โ€ฆ
The full moon in March(closest to the vernal equinox) is called Worm Moon(among other things) because of the Earthworm casts seen in the ground as the ground thaws. moon.nasa.gov/news/43/mooโ€ฆ
Iran has its very own calendar. The year begins at the vernal equinox, as observed from Tehran. The current year is 1395. en.wikipedia.org/wiki/Iraโ€ฆ
The Cassini Probe has been orbiting Saturn since 2004 and has been through two mission extensions dubbed "Equinox" and "Solstice." "Solstice" will end with a dramatic plunge into Saturn's atmosphere on September 15th this year. saturn.jpl.nasa.gov/scienโ€ฆ
Neptune is so far from the Sun that it takes 123 years to go from the start of Spring-(vernal equinox) to the start of Winter-(winter solstice). science.nasa.gov/science-โ€ฆ
Iranians celebrate the first day of spring at the exact moment the earth is at vernal equinox as the start of their new year. Their new year is just based on the earth's spring, nothing else. en.m.wikipedia.org/wiki/Nโ€ฆ
The calendar date of Easter is based on astronomy. It is generally the first Sunday after the first full moon following the vernal equinox. en.m.wikipedia.org/wiki/Eโ€ฆ
In October 1582, 10 calendar days were skipped in order to move the equinox to the 21st of March and September, as it had slowly slipped backwards to the 10th due to a flaw in the Julian calendar. en.wikipedia.org/wiki/Popโ€ฆ
L Spring Equinox: An equinox is an astronomical event in which the plane of Earth's equator passes through the center of the Sun,[2] which occurs twice each year, around 20 March and 23 September en.wikipedia.org/wiki/Equโ€ฆ
The date of Easter is based on the vernal equinox kidspot.com.au/Easter-Traโ€ฆ
The First Council of Nicaea (325) established the date of Easter as the first Sunday after the full moon (the Paschal Full Moon) following the March equinox. en.wikipedia.org/wiki/Easโ€ฆ
The December 21 2012 equinox is at 11:11... make a wish? en.wikipedia.org/wiki/Equโ€ฆ
The equinox does not have equal day & night length. The amount of daylight/darktime hours varies due to light refraction from the Sun (or lack of), as well as latitude. timeanddate.com/astronomyโ€ฆ
Indian summer is a period of at least 70 degree weather for 7 days or more after the autumnal equinox. crh.noaa.gov/dtx/stories/โ€ฆ
The earliest recording of a new year celebration is believed to have been in Mesopotamia, c. 2000 B.C. and was celebrated around the time of the vernal equinox, in mid-March. The first time the new year was celebrated on January 1st was in Rome in 153 B.C. infoplease.com/spot/newyeโ€ฆ
You can surf the Amazon river. The Pororoca is a wave that can be up to 4m tall and is caused by extreme tides during the lunar equinox. vimeo.com/19409757
The Iranian calendar (AKA Persian calendar or the Jalaali Calendar) is a solar calendar currently used in Iran and Afghanistan. It is observation-based, rather than rule-based, beginning each year on the vernal equinox as precisely determined by astronomical observations from Tehran. iranchamber.com/calendar/โ€ฆ
September equinox occurs at 4:44 p.m. EDT today, when the Sun crosses the equator heading south for the season. skyandtelescope.com/obserโ€ฆ
The autumnal equinox of 2010 coincided with the harvest moon for the first time since 1991, it will not happen again until 2029. mnn.com/food/organic-farmโ€ฆ
October 5th-14th, 1582 didn't happen in the papal states. Pope Gregory XIII deleted them in order to correct the vernal equinox, which had shifted to 10 March instead of 21 March. Thus began the Gregorian Calendar. pages.citebite.com/e1v5w3โ€ฆ

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