Curious Ways Our Ancestors Tracked the Seasons
Across time, people have marked the changing of seasons—sometimes in dramatic ways! In honor of the equinox on March 20, let’s look at six amazing and ancient sites aligned with the solstices and equinoxes.
Did you know that the equinoxes and solstices happen at the same moment around the world? Even though we all have different time zones, these are astronomical events based on our planet’s orbit around the Sun and tilt on its axis.
Our ancestors lived amidst nature more than most of us do today. They observed the universe, marveling in its rhythms. They used the Sun and the Moon as a sort of calendar, tracking the Sun’s path across the sky. Here are some examples of the ancient sites and monuments that were built to align with the solstices or equinoxes.
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Our ancestors built the first observatories to track the sun’s progress.
1. Stonehenge (England)
Every year on the summer solstice, thousands of people travel to Wiltshire, England, to Stonehenge, a place with huge stones that were arranged in a circle around 3000 B.C. The huge monument marks the relation between the Sun and the seasons.
On the dawning of the summer solstice, the sun rises directly above the Heel Stone—a mysterious prehistoric monument whose origins, depending on interpretation, were as an ancient burial ground, an astrological observatory, even a supernatural phenomenon. See photos and historical details on the Stonehenge Web site.
2. Machu Picchu (Peru)
Machu Picchu is the transcendent City of the Incas. This archaeological site is perched atop a mountain overlooking the Urubamba Valley in Peru.
There is a giant stone at the top of this sacred mountain called Intihuatana, which means “the place when the sun gets tied.” Amazingly, the stone is perfectly positioned so that each corner sits at the four cardinal points (north, south, east, and west), and at an angle of about 13 degrees northward.
Usually, the stone casts a shadow throughout the day, as any other structure would. However, at exactly noon on the date of the spring or fall equinox, the Sun’s shadow disappears! Therefore, the stone is a precise indicator of the date of the two equinoxes.
3. Chichen Itza (Mexico)
At what is now Chichen Itza (“CHEE-chen EET-sa”), Mexico, Mayans built a huge pyramid around the year A.D. 1000. The play of the Sun’s light on it signals the beginning of the seasons.
On the spring equinox, for example, the light pattern looks like a snake. Mayans called this day “the return of the Sun serpent.” See more photos of this incredible pyramid at the Chichen Itza Web site.
4. Chaco Canyon (New Mexico, USA)
In today’s Chaco Canyon, New Mexico, the Ancestral Puebloan people, who were expert sky watchers, carved spiral designs into rock to track the seasons and record the passage of time.
In this canyon is a petroglyph called the Sun Dagger because of the way the Sun’s wedge-shape beams strike it in midday during the summer and winter solstices.
5. Newgrange (Ireland)
Around 3200 B.C., ancient people in Ireland built a huge mound of dirt and surrounded it with stones. Today, the knoll is called Newgrange.
For five days around the winter solstice, a beam of sunlight illuminates a small room inside the mound for 17 minutes at dawn. The room holds only twenty people at a time.
Every year, thousands enter a lottery in hope of being one of the hundred people allowed to enter. See more photos of Newgrange here.
6. The Great Sphinx and Pyramid of Khafre (Egypt)
The famous pyramids and Sphinx of Ancient Egypt also have their time in the Sun, so to speak.
On the spring or fall equinoxes, a peculiar phenomenon occurs. If you stand directly in front of the Sphinx (facing it) at sunset on the date of either equinox, as the Sun nears the horizon, you’ll observe it settle directly onto the Sphinx’s right shoulder. At this angle, the Sun also sits at the southern corner of the Pyramid of Khafre, located behind the Sphinx.
Celebrate the Seasons!
Mark the equinoxes and solstices! See our seasons page with dates for the start of spring, summer, fall, and winter.
Have you traveled to these ancient sites? Follow the links above to visit virtually. And tell us how you celebrate the seasons!
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Wurdi Youang in Australia is now recognised as probably the oldest solar observatory in the world, at around 11,000 years old.
https://www.sciencealert.com/australia-s-wurdi-youang-stone-site-might-have-been-the-world-s-first-observatory
Plenty of other references online, including the original academic papers.
I am baffled by these ancient sites around the world and have questions if anyone knows plausible answers.
1. Why was it so important to use the same rocks when constructing these sites. It was so important to them that they had to transport a certain type of rock to make these structures. Question 2 relates...
2. The site chosen for these ancient structures were far a away from the type of rocks needed. They easily could have built their site closer but around the world, specific types of rock were needed and specific spaces were chosen for what purpose. This is not specific to one or a few sites. It seems they all had the same knowledge that we do not know about.
3. There are many ancient scripts, stone tablets, drawings, rock paintings etc of daily life, wars, laws, ancient historical events, deaths, conquests etc. But not one on how, when or why these ancient sites around world were built. If people of the world all knew how, why, with what type of rock, how to align these structures exactly to the solstices, with humongous stones that they could have easily used smaller ones. If it was so important to them, why is there no findings of how or why. It would be naïve to think that no one would boast of their selves and their capability of building such a monumental structure of important knowledge.
4. One more thing. If it marked the beginning of a agriculture system, what if they missed that day. What if no one watch watching at that exact moment of that day, that specific minute, what if they missed it?
Why continental movement has not alter these sites?
Jeffers Petroglyphs (about 7000 years old, older than Stonehenge) in Minnesota has a line on the petroglyphs that points to the sunrise on the summer solstice. Another site, but I thought about all of the above sites when the guide told us that. It is the only straight line on the rock outcrop that cuts the rock edge to edge.
The 5000 year old megalithic temples of Mnajdra and Hagar Qim in Malta, Europe are also aligned with the solstices and equinoxes. They are possibly the most ancient buildings standing.
There is also a place called American Stonehenge in Salem, New Hampshire.
Maeshowe, a chambered cairn in the Orkney Islands, also serves as a solstice marker in addition to being a community tomb for the people who lived there 5000 years ago. On the day of the solstice, the setting sun illuminates the interior of the cairn.
Im not sure but is there also a grouping of 7 Easter Island heads that strangely face out and are aligned with the Equinox?
Enjoyed this article,
Thanks, Valerie
The term the writer used "Anasazi" is no longer used by the tribes of the southwest because it means "Enemies of the people". They instead us the term "Ancient Pueblans" to describe these ancestors.
I’m a member of Navajo Nation. We use the word as it is part of our culture and tied to many place names. Navajo word is anaasází, which means ancient people or enemy ancestors (ones who became part of earth & only soul remains). Whereas, Anasazi is anglicized word that identifies hotels, restaurants, books, etc.
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