The first eyeglasses

The first eyeglasses

Salvio D'Armate possibly invented eyeglasses around 1285. He shared the invention with Allesandro Della Spina, an Italian monk who made eyeglasses public.

The first eyeglasses had metal or bone frames, and the lenses were made out of quartz.

Vera D. (@vera_qd) - Profile Photo





  • In the 14th century, Venetian craftsmen made eyeglasses. The lenses were convex to correct far-sightedness.
  • In 1451 Nicholas of Cusa from Germany produced concave eyeglass for near-sighted people.
  • In the 17th century, frames of steel were invented.
  • British optician Edward Scarlett invented eyeglasses where the frame could be placed over the ears and nose.
  • Benjamin Franklin invented bifocals.
  • In 1827, Sir George Biddle Airy invented glasses to correct astigmatism.
  • In 1971, a lens was developed which combined plastic with glass.

Deepstash helps you become inspired, wiser and productive, through bite-sized ideas from the best articles, books and videos out there.



Gymnastics in Greece and Rome

The history of gymnastics began in ancient Greece. Gymnastics was a fitness training program encompassing many forms of athletic activity, including running, wrestling and physical fitness routines. Some forms of gymnastics were included in the Olympics.

The Romans continued the practice. The routines became more oriented toward preparation for training as a soldier. In 393 AD the Emperor Theodosius banned the Olympic Games, which by then had become corrupt, and gymnastics, along with other sports, dwindled.

Clay tablets and papyrus scrolls
  • Long before the use of paper, the Stimarians - people of Mesopotamia who lived around 3500-3000 B.C. - invented the Cuneiform writing system. It consisted of pictographs and phonograms that was etched on clay tablets. This method of writing was around for 2000 years.
  • Papyrus Scroll dates from around 2400 B.C. They were made from the stem of the Papyrus plant and were about 10 - 40 metres long. Ancient Egyptians used reeds or bird feathers to write on the scrolls.
A replacement for fountain pens

Fountain pens, although stylish, were messy and impractical.

In 1945, Gimbels started to sell a new kind of ink pen, made by the Reynolds International Pen Company. With its quick-dry ink and a rolling ball in the nib, it promised a steady stream of ink with no leaks, smudges, or pooling inkblots.

The pen was not the first ballpoint pen. But its evolution is an example of a game-changing design waiting for the right outside factors to achieve its full potential - in this case, the increase of plastics, mass-production infrastructure, and a brilliant marketeer.

❤️ Brainstash Inc.