This year, I felt called to explore deeper into our roots. The call for more information than that which has been taught at face value. Let's explore and learn more TOGETHER!
Here's a bit of interesting info about the Solstice:
The term “solstice” comes from the Latin words sol (Sun) and sistere (to stand still) because, during the solstice, the angle between the Sun’s rays and the plane of the Earth’s equator (called declination) appears to stand still.
So what does that mean, exactly? Upon the winter solstice, the Sun appears at it's lowest in the sky, and it's noontime elevation seems to stay the same for several days before and after this day. The Sun’s gradual decrease in the sky reverses upon the winter solstice, marking what many cultures believe to be a “rebirth” of the Sun as the hours of daylight become longer. 
(Some of us may have alternately learned about this, as the birth of the "son" aka Jesus. 
)
Early man kept track of the days by observing the Sun as it “moved” across the sky and cast shadows during the day and at different times of the year. In fact, historians believe Stonehenge in England was erected to keep track of the Sun’s yearly progress.
How cool is that?!
Copied from: https://www.farmersalmanac.com/winter-solstice-first-day... (and added my own edit, too.)