Sentence examples for been dated to at from inspiring English sources

The tools in question come from Attirampakkan, in Tamil Nadu, and have been dated to at least 1m years ago, probably 1.5m and possibly 1.6m, using a combination of the effects of cosmic rays on the stones themselves and a study of the magnetic polarity of the soil they were found in, which reflects datable reversals in the direction of the Earth's magnetic field.

The name Wigan has been dated to at least the 7th century and probably originally meant a "village" or "settlement".

Some of these sites are dated to at least 90,000 years ago and possibly somewhat earlier, demonstrating that humans were able to survive in the area at about that time.

Carbonized hazelnut shells found there have been dated to the Mesolithic period at 7700-7500 BC.

Several of his motets have been dated to the years he spent at the papal chapel.

The use of spears for hunting has been dated back to at least 600,000 years ago, from sites in Germany, but the oldest spears are nothing more than sharpened sticks.

Meanwhile, a set of 47 modern human teeth found in a cave in southern China was recently dated to at least 80,000 years old.

The finds have been dated at Oxford University to c110,000BC by a system known as "optically stimulated luminescence" (OSL), a technique often used to date particularly ancient sites.

The sediments in which its fossils were found have been dated at ~194 to 188 million years ago, representing the Early Jurassic Period.

The origin of its crown clade has been dated at ∼40 53 to 70.7 72.6 million years ago, depending on which fossil calibration points are used (Christin et al. 2014).

The mycorrhizal symbiosis is ancient, dating to at least 400 million years ago.