- a home page for the AXIOM OF CHOICE (math.vanderbilt.edu)
The Axiom of Choice (AC) was formulated about a century ago, and it was controversial for a few of decades after that; it might be considered the last great controversy of mathematics. It is now a basic assumption used in many parts of mathematics.
- 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.