Toledo, OH City Data - Population, Homes, Statistics. Toledo, OH City Data. Toledo, OH is a city with great restaurants, attractions, history and people. There are around 313,619 people who live in Toledo and approximately 455,054 who live in Lucas County.
The Pleistocene Epoch is typically defined as the time period that began about 1.8 million years ago and lasted until about 11,700 years ago. The most recent Ice Age occurred then, as glaciers covered huge parts of the planet Earth.
The great Precambrian expanse of time is divided into the Proterozoic, Archean, and Hadean eons in order of increasing age. The names of the eras in the Phanerozoic eon (the eon of visible life) are the Cenozoic (recent life), Mesozoic (middle life) and Paleozoic (ancient life). The further subdivision of the eras into 12 periods is based on identifiable but less profound changes in life-forms.