A solstice is an astronomical event that occurs twice each year as the Sun reaches its highest or lowest excursion relative to the celestial equator on the celestial sphere. The solstices and the equinoxes are connected with the seasons.
Adults can have up to 32 teeth. The wisdom teeth are the last to appear, right at the back of the mouth. They usually appear when you are between 17 and 25, although sometimes they appear many years later. People often have jaws that are too small for all 32 teeth to fit - 28 is often the most we have room for.
Wisdom teeth are so called because they are the last teeth to come in, at about the time of young adulthood -- the age when a person gains maturity and thus wisdom. The majority of us have most of our permanent (adult) teeth by age 13, followed by our wisdom teeth (third molars), which usually push their way through the gums or become impacted between ages 17-21.