17th century
Yes. Many scientists just were unaware of them.
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17th century.
The 17th Century
As no reliable records exist for every country it is impossible to say.
The 17th century comes before the 18th.
1678 is a date in the 17th century AD.
In the 17th century: 1606-1669.
There was no need for airports during the 17th and 18th century because there were no airplanes.
the role of an apothecary in 17th century England.
trace the growth of delhi from 17th century by