Christopher Columbus initiated Orange Cultivation by introducing orange seeds from the Canary Islands to the Islands of Hispaniola (now Haiti and Dominican Republic) in 1493 during his second voyage. Continue reading
The contact lens were imagined and sketched his designs was the Italian artist and scientist Leonardo da Vinci, in 1508. Later in 1632 the French philosopher Rene Descartes conceived of corneal contact lens.
1508 / 1632
Leonardo da Vinci,
- Leonardo da Vinci – Wikipedia
Leonardo di ser Piero da Vinci (Italian: [leoˈnardo di ˌsɛr ˈpjɛːro da (v)ˈvintʃi] ( listen); 15 April 1452 – 2 May 1519), more commonly Leonardo da Vinci or simply Leonardo, was an Italian polymath whose areas of interest included invention, painting, sculpting, architecture, science, music, mathematics, engineering, literature, anatomy, geology, astronomy, botany, writing, history, and cartography.
- Da Vinci to Disposable: A History of Contact Lenses – 1800contacts.com
When you think about contact lenses, you probably don’t picture wearing a bowl of water on your head, but strangely enough, that’s how they began. In his 1508 “Codex of the Eye”, Italian inventor Leonardo da Vinci speculated that submerging the head in a bowl of water could alter vision.
- When Were Contact Lenses Invented? – AllAboutVision.com
Though contact lenses seem to be a recent phenomenon, the famous Italian architect, mathematician and inventor Leonardo da Vinci (1452-1519) produced the first known sketches (in 1508) that suggested the optics of the human eye could be altered by placing the cornea directly in contact with water.
- A Brief History of Contact Lenses
1508 Leonardo da Vinci illustrates the concept of contact lenses
- Contact lens – Wikipedia
A contact lens, or simply contact, is a thin lens placed directly on the surface of the eye. Contact lenses are considered medical devices and can be worn to correct vision, or for cosmetic or therapeutic reasons.
- The Evolution of Contact Lenses: From Da Vinci to Electronic Lenses …
As of 2012, there were 34 million Americans and 71 million people worldwide who wore the thin film inserts known as contact lenses over their eyes for some form of vision enhancement, according to the U.S. Environmental Protection Agency.
Portable star map known as Tunhuang manuscript to astronomers, was made in China circa 940.
Christopher Columbus wrote a letter to the monarchs of Spain in March 1493, this eyewitness report to become a best-seller was this letter. Continue reading
The findings of this 3 Billion Year Old Fossil Oil was published in the scientific journal "Nature" on October 28th, 1998. Continue reading
the Spanish colonists in Florida (now in the United States) introduced the Beef Cattle to North America in 1550.
On January 20th 1996, about 1 million Palestinians participated in a vote, of which over 88 percent of the vote in favour Continue reading
Blattnerphone was a Tape recorder developed by the German film producer Louis Blattner in 1929. Continue reading
Leonardo da Vinci, created a lantern made of metal with a chimney Continue reading
The first jet airmail flight from Canada to the USA was on April 18th, 1950, by a jet aircraft made by Avro Canada. Continue reading