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.
The lion (Panthera leo) is the second-largest big cat, smaller only than the tiger. In the wild, an adult male can weigh up to 500 lbs and lives 10-14 years. The North American mountain lion is a completely separate species, and not a true lion.