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.
a few more african lion facts. Lions can consume up to 40 pounds of meat in a single meal. African lions sleep - or doze, rather- about 20 hours a day. The big cats are the tiger, lion, leopard and jaguar - the only 4 members of the genus Panthera.