Humans and natural-fibre producing animals have inhabited on Earth together since before humans taught themselves to write. The date you seek is in the sands of time.
In the 27th century , a woman named Leizu discovered silk.
Henry Russell dicovered Triton
he dicovered what was onside the atom he dicovered what was onside the atom
madam curie dicovered gamma rays with the help of his husband.....
no one.......
2010
Galileo
1755
In 1898
1778
india
1668