Some believe that Stonehenge (2500 BCE) in England was built to help establish when the Summer Solstice occurred.
Males and Females sleep up to 18-20 hours a day in most cases. Depending on how hot or if the weather is perfect than the lion will sleep. If the weather is good ther will sleep about 14-18 hours and go hunting or playing.
Sleeping mainly during the day, lions are active primarily at night (nocturnal), although sometimes at twilight (crepuscular). Highly distinctive, the male lion is easily recognised by its mane, and its face is one of the most widely recognised animal symbols in human culture.