- NGC 457 (Wikipedia)
NGC 457 (also designated Caldwell 13, and known as the Dragonfly Cluster, E.T. Cluster, Owl Cluster, Kachina Doll Cluster or Phi Cassiopeiae Cluster) is an open star cluster in the constellation Cassiopeia.
- Neolithic (Wikipedia)
The Neolithic or New Stone Age (from Greek νέος néos ’new’ and λίθος líthos ‘stone’) is an archaeological period, the final division of the Stone Age in Europe, Asia and Africa. It saw the Neolithic Revolution, a wide-ranging set of developments that appear to have arisen independently in several parts of the world. This “Neolithic package” included the introduction of farming, domestication of animals, and change from a hunter-gatherer lifestyle to one of settlement. The term ‘Neolithic’ was coined by Sir John Lubbock in 1865 as a refinement of the three-age system.