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5,400 years ago in a sentence

1. The best-known of these are the following: The earliest written evidence of an Afroasiatic language is an Ancient Egyptian inscription dated to c. 3400 BC (5,400 years ago).

2. Among New World wolves, the Mexican wolf diverged around 5,400 years ago.

3. It was long believed that the region had been this way since about 1600 BCE, after shifts in the Earth's axis increased temperatures and decreased precipitation, which led to the abrupt desertification of North Africa about 5,400 years ago.

4. This wide distribution is sometimes called the Pleistocene bison belt compared to the Great bison belt The radiocarbon dating of a steppe bison skeleton indicates that it was present 5,400 years ago in Alaska.

5. Dingoes probably arrived in Australia between 4,600 and 5,400 years ago, long after the first humans, spread rapidly across the continent and probably contributed to the extinction of even more native species.

6. Securely dated to about 5,400 years ago (around 3500 BCE), in the Middle Archaic period, it consists of a formation of 11 mounds from 3 feet (0.91 m) to 25 feet (7.6 m) tall, connected by ridges to form an oval nearly 900 feet (270 m) across.

7. This last eruption is also known from the Byrd ice core and may correspond to an eruption 8,200±5,400 years ago recorded at the Takahe edifice and to two 6217 and 6231 BC tephra layers at Siple Dome.

8. The earliest written evidence of an Afroasiatic language is an Ancient Egyptian inscription dated c. 3400 BC (5,400 years ago).