Multiple choice The New Stone Age started about.... 2.5 million years ago 3,500 years ago 12,000 years ago Yesterday Reveal answer Fill a bubble to check yourself C Correct answer Explanation The New Stone Age, or Neolithic period, began around 10,000 BCE (approximately 12,000 years ago) with the development of agriculture and permanent settlements. This followed the end of the last Ice Age and marked a major shift in human lifestyle.