about 4600 million years ago
It varied a lot but it became very cold and the Earth became covered with ice.
in the precambrain time
Paleozoic
During the Precambrian Era, life forms were predominantly single-celled organisms such as bacteria and algae. These organisms were simple and lacked the complex structures seen in later eras. It was a time of significant evolution and diversification of life on Earth.
Precambarian- When earth’s atmosphere formed Mesozoic- Ended with a massive impact Paleozoic- When oxygen-breathing organisms first thrived Cenozoic- Began about 65 million years ago Hope this helps! :)
1924
about 9500bc
The Medieal era started with the Norman Conquest in 1066
The Victorian Era started at 1819 to 1901
11003 bc
around 1654
1901 to 1910