The invention of measuring tools is prehistoric, therefore by definition there won't be a primary source.
It is a primary source because it was taken at the time.
yes,a coin is a primary source
A primary source is a source material that is closely related to the subject discribed with in.
Primary - as it is a document produced at the time. It is not some later report.
Unoriginal Source
he was a good ruler
The ruler was invented by a Greek man, theodorus, crete. And it was invented in 4400 bc
It is a primary source.
A picture can indeed be a primary source.
it is a primary source
It is a primary source because it was taken at the time.
on venus
yes,a coin is a primary source
Primary
The primary source is Urea
Primary Source
The Mayflower Compact is a primary source document because it was created by the passengers aboard the Mayflower in 1620. It directly reflects their intentions and agreements when establishing their government in the New World.