Saturday, January 16, 2021
Contact us    |    Advertise    |   Help    |   Cookie Policy    |   Privacy Policy    RSS icon Twitter icon Facebook icon
    Home  ·  News  ·  Forum  ·  Stories  ·  Image Gallery  ·  Columns  ·  Encyclopedia  ·  Videos
Find: in

Blue jeans' color originated 6,200 years ago

Posted on Sunday, 18 September, 2016 | Comment icon 2 comments

Indigo dye was developed thousands of years ago. Image Credit: CC BY 2.0 Marcos Andre
New evidence suggests that indigo dyes were first used 1,800 years earlier than previously believed.
Until recently, the oldest known use of indigo-colored dyes was thought to have dated back to the time of the ancient Egyptians more than 4,400 years ago, but now it appears as though it was the ancient Peruvians who were the first to develop dyes of this color up to 1,800 years beforehand.

Researchers made the discovery after analyzing cloth samples retrieved from the excavation of a Peruvian ceremonial mound known as Huaca Prieta which was occupied as far back as 4700 BC.

The samples were initially covered in a dark, sooty material from the temple, so to reveal the original color the team used a special technique known as high-performance liquid chromatography.
The blue dye contained the organic compound indigoid which is found in several native plants.

"The people of the Americas were making scientific and technological contributions as early and in this case even earlier than people were in other parts of the world," said lead author Jeffrey Splitstoser. "We always leave them out. I think this finding just shows that that's a mistake."

"Many people remain mostly unaware of the important technological contributions made by Native Americans, perhaps because so many of these technologies were replaced by European systems during the conquest."

Source: Christian Science Monitor | Comments (2)

Tags: Dye, Jeans

Recent comments on this story
Comment icon #1 Posted by paperdyer on 19 September, 2016, 16:11
Interesting.  Most natural indigo has been replaced by synthetic indigo.  I wonder what the Egyptians used to "reduce" the necessary groups on the natural indigo to give it affinity for the cloth.  Dyeing the cloth in the pigment form would have given low color yield and poor fastness relative to the "reduced" form.  Then again maybe the Egyptians didn't care.
Comment icon #2 Posted by penguinfighter on 20 September, 2016, 11:52
hella jeans

Please Login or Register to post a comment.

  On the forums
Forum posts:
Forum topics:


Nearby planet is almost as old as the universe
Astronomers have identified a nearby extrasolar world that is not only terrestrial in nature, but also ancient.
Musk: Mars settlers could trade in 'Marscoin'
People living on Mars could one day leave regular currency behind in favor of Mars-based cryptocurrencies.
Dire wolves were a distinct species, study finds
These giant prehistoric beasts, made famous by Game of Thrones, were part of a mysterious ancient lineage.
'Dead' woman spends years proving she is alive
Jeanne Pouchain has spent the last three years trying to prove to French authorities that she isn't dead.
Stories & Experiences
The voice of something not human
11-17-2020 | Baldwin Hills, Los Angeles
Shadow figure demon ?
11-14-2020 | USA
Ghost following me
9-18-2020 | Iowa
Mysterious glowing cube
8-23-2020 | Alabama
Black blob in my room/bed
7-23-2020 | Powell,TN U.S.
Transparent levitating ball
7-14-2020 | Santa Rosa, California
Grim reaper-like visitation
6-16-2020 | Canada
My monster catfish story
6-15-2020 | Dallas texas

         More stories | Send us your story
Top   |  Home   |   Forum   |   News   |   Image Gallery   |  Columns   |   Encyclopedia   |   Videos   |   Polls
UM-X 10.712 (c) 2001-2021
Terms   |   Privacy Policy   |   Cookies   |   Advertise   |   Contact   |   Help/FAQ