To help compare orders of magnitude of different times this page lists times between 10
11 seconds and 10
12 seconds (3,200 years and 32,000 years)
See also times of other orders of magnitude.
* Shorter times (see also 2nd millennium BC)
* 3,200 years -- time since the Greek Dark Ages and the beginning of the Iron Age
* 3,800 years -- time since alphabetic writing emerged
* 4,500 years -- approximate time since the domestication of the horse
* 4,700 years -- estimated age of oldest living plant, a bristle-cone pine
* 5,300 years -- time since Sumerians developed cuneiform writing
* 5,400 years -- time since Neolithic Age ended and Bronze Age began
* 5,715 years -- half-life of Carbon-14
* 6,010 years -- age of the earth according to the calculation of Bishop Ussher (in 2006)
* 6,500 years -- time since the invention of the wheel
* 7,370 years -- half life of americium-243
* 8,500 years -- half life of curium-245
* 10,000 years -- time since city of
Jericho was founded
* 10,000 years -- time since end of
Pleistocene Epoch
* 10,000 years -- time since beginning of
Holocene Epoch
* 12,000 years -- time since beginning of Neolithic Age
* 12,000 years -- time since the land ice left
Denmark and southern Sweden
* 20,000 years -- approximate age of the Ishango Bone, the oldest known tally stick
* 20,300 years -- half life of niobium-94
* 21,000 years -- time since the Last Glacial Maximum
* 24,110 years -- half life of plutonium-239
* 25,000 years -- time since the first colonisation of North America
* 30,000 years -- approximate age of Haplogroup X (mtDNA) and Haplogroup I (mtDNA)
* Longer times
Category:Orders of magnitude (time)
