Discovery of Ancient Stone Tools Rewrites the History of Technology

via The Verge

A new discovery of stone tools from about 385,000 years ago has anthropologists rethinking the history of technology. The stone tools, found at a site in southern India, were sophisticated blades chipped from chunks of quartz, which is a technique that experts previously thought came to India only about 125,000 years ago.

Archaeologists analyzed more than 7,200 stone tools and found that this sophisticated tool-making technique, called Levallois, began replacing clunkier and more primitive stone tools between 449,000 and 321,000 years ago. This discovery is the earliest evidence of Levallois technology in India, according to a study published today in the journal Nature. It also pushes back the technological timeline there roughly 250,000 years.

Ancient human relatives — collectively known as hominins — started making heavy stone tools at least 1.75 million years ago. But roughly 300,000 to 400,000 years ago, hominins in Africa and Europe went through a technological revolution and began chipping blades and points off of portable stone cores. These Levallois tools were much easier to produce in large quantities, and they could be attached to sticks to make spears. Previous digs suggested that this more advanced technology didn’t catch on in India until much later, after around 140,000 years ago. So one theory said that modern humans brought their tool-making know-how with them to India when they first started leaving Africa around 125,000 years ago (give or take a few thousand years).

“These data show that was wrong,” says John Hawks, an anthropology professor at the University of Wisconsin-Madison who was not involved in the study. Today’s findings reveal that Levallois tools emerged in India roughly 385,000 years ago — right around the same time they started showing up in Africa and Europe. That means “India is part of this network of cultural innovation that included Neanderthals and Africans,” Hawks says. Michael Petraglia, a professor of human evolution at the Max Planck Institute in Germany who also did not participate in the research, agrees that the discovery is a key piece of the puzzle. “It fills an important gap in our knowledge of an important crossroads,” he says.

Read more!


Adafruit publishes a wide range of writing and video content, including interviews and reporting on the maker market and the wider technology world. Our standards page is intended as a guide to best practices that Adafruit uses, as well as an outline of the ethical standards Adafruit aspires to. While Adafruit is not an independent journalistic institution, Adafruit strives to be a fair, informative, and positive voice within the community – check it out here: adafruit.com/editorialstandards

Join Adafruit on Mastodon

Adafruit is on Mastodon, join in! adafruit.com/mastodon

Stop breadboarding and soldering – start making immediately! Adafruit’s Circuit Playground is jam-packed with LEDs, sensors, buttons, alligator clip pads and more. Build projects with Circuit Playground in a few minutes with the drag-and-drop MakeCode programming site, learn computer science using the CS Discoveries class on code.org, jump into CircuitPython to learn Python and hardware together, TinyGO, or even use the Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for CircuitPython, MakeCode, and Arduino. It has a powerful processor, 10 NeoPixels, mini speaker, InfraRed receive and transmit, two buttons, a switch, 14 alligator clip pads, and lots of sensors: capacitive touch, IR proximity, temperature, light, motion and sound. A whole wide world of electronics and coding is waiting for you, and it fits in the palm of your hand.

Have an amazing project to share? The Electronics Show and Tell is every Wednesday at 7pm ET! To join, head over to YouTube and check out the show’s live chat – we’ll post the link there.

Join us every Wednesday night at 8pm ET for Ask an Engineer!

Join over 36,000+ makers on Adafruit’s Discord channels and be part of the community! http://adafru.it/discord

CircuitPython – The easiest way to program microcontrollers – CircuitPython.org


Maker Business — “Packaging” chips in the US

Wearables — Enclosures help fight body humidity in costumes

Electronics — Transformers: More than meets the eye!

Python for Microcontrollers — Python on Microcontrollers Newsletter: Silicon Labs introduces CircuitPython support, and more! #CircuitPython #Python #micropython @ThePSF @Raspberry_Pi

Adafruit IoT Monthly — Guardian Robot, Weather-wise Umbrella Stand, and more!

Microsoft MakeCode — MakeCode Thank You!

EYE on NPI — Maxim’s Himalaya uSLIC Step-Down Power Module #EyeOnNPI @maximintegrated @digikey

New Products – Adafruit Industries – Makers, hackers, artists, designers and engineers! — #NewProds 7/19/23 Feat. Adafruit Matrix Portal S3 CircuitPython Powered Internet Display!

Get the only spam-free daily newsletter about wearables, running a "maker business", electronic tips and more! Subscribe at AdafruitDaily.com !



No Comments

No comments yet.

Sorry, the comment form is closed at this time.