The Holocene calendar, Human Era count or Jōmon Era count (Japan) uses a dating system similar to astronomical year numbering but adds 10,000, placing a year 0 at the start of the Jōmon Era (JE), the Human Era (HE, the beginning of human civilization) and the aproximate beginning of the Holocene Epoch (HE) for easier geological, archaeological and, especially for Japanese regnal years, historical dating. The current year can be transformed by simply placing a 1 before it (i.e.: 12018). The system is not officially acknowledged and so far is only used within some Japanese academic circles. The Human Era proposal was first made by Cesare Emiliani in 1993. [1]