Just the one, the same one we live in now which started about 2.6 million years ago.
As far as glaciations are concerned there have been at least 3, possibly 4, in the last 400,000 years.
There have been about 8-10 major ice ages in the past 800,000 years, occurring approximately every 100,000 years. These ice ages are characterized by periods of lower global temperatures and expanding ice sheets.
There have been five major ice ages in Earth's history, with the most recent one ending about 11,700 years ago. These ice ages were periods of prolonged cold temperatures and glaciation.
There have been around eight ice ages in the last million years, with each ice age lasting for tens of thousands of years. These ice ages were characterized by the expansion of glaciers and ice sheets over large portions of the Earth's surface, resulting in cooler temperatures and lower sea levels.
There have been multiple ice ages throughout Earth's history, with each one lasting millions of years. The time between ice ages can vary greatly, from hundreds of millions to billions of years, depending on geological and climatic factors.
There have been five major ice ages on Earth, with the most recent one ending about 11,700 years ago. These ice ages were periods when the Earth's climate was significantly cooler and ice sheets covered large portions of the planet.
None. The US is only 200 years old. The middle or dark ages lasted from 410 to 1500 over a thousand years.
more dan thousand years
There has been 250 Olympics have been held have been in the last thousand years.
Over three thousand.
The middle ages in Europe lasted for a thousand years and involved many different countries. There was no one king over that period.
There have been about 8-10 major ice ages in the past 800,000 years, occurring approximately every 100,000 years. These ice ages are characterized by periods of lower global temperatures and expanding ice sheets.
A thousand years ago is a millennium ago.A millennium is a thousand years.A millenium
three hundred thousand years
A thousand years
About 20,000 years ago. I read it off of Wikipedia. There have been many ice ages over the past 2.4 billion years. The present ice age started about 2.6 million years ago although there have been many warm periods,(interglacials), during that time, we are in one now.
There are a thousand years in one millennium.
Throne of a Thousand Years has 332 pages.