Resultado de búsqueda
Hace 8 horas · Human history is the development of humankind from prehistory to the present, understood through the study of written records, archaeology, anthropology, genetics, linguistics, and other forms of evidence.. Modern humans evolved in Africa around 300,000 years ago and initially lived as hunter-gatherers.They migrated out of Africa during the Last Ice Age and had populated most of the Earth by ...
Hace 8 horas · The oldest meteorite fragments found on Earth are about 4.54 billion years old; this, coupled primarily with the dating of ancient lead deposits, has put the estimated age of Earth at around that time. The Moon has the same composition as Earth's crust but does not contain an iron-rich core like the Earth's. Many scientists think that about 40 million years after the formation of Earth, it ...
