What did Benjamin Franklin invented to make him a inventor?

A bifocal lens. In the 1780s, Benjamin Franklin invented the first bifocal lenses. This invention was the first of its kind and revolutionized the way people could see. Before bifocals, people with nearsightedness and farsightedness had to carry two separate pairs of glasses, making seeing both up close and far away difficult and inconvenient. With bifocals, users only needed one pair of glasses with two lenses, one for near vision and one for distance. This invention greatly improved the quality of life for people who had difficulty seeing at different distances.

What were the Phoenicians inventions?

How do you make a viking helmet with horns out of card board?

Lignite would have been used by the Mycenaeans more than 3000 years ago
For a long time, archaeologists have wondered how the Mycenaean civilization could have produced the countless pottery found throughout the Mediterranean world. According to a recent study, this would be thanks to the systematic use of lignite as fuel. A surprising explanation, which indicates that
The Vyne ring, the object stolen in the fourth century that could have inspired Tolkien
Was J.R.R. Tolkien in an authentic archaeological piece to conceive that Unique Ring that is the leiv motiv of his novels? He never said anything about it, so its impossible to know for sure. However, in 1929, that is, eight years before writing the first book in which the object appears, The Hobb
Three Bronze Age swords that retain their wooden hilts are found in the ancient Greek city of Ripes
The first period of excavations this year on the Trapeza plateau, eight kilometers southwest of Aegean in ancient Greek Achaia, has concluded, bringing to light, among other things, valuable sets of grave goods and three bronze swords. The place is identified with Ripes, a city that flourished in ea
A 2,800-year-old silver treasure in the steppes of Kazakhstan
A 2,800-year-old goldsmith treasure belonging to the Eastern Scythians or Sakas has been unearthed in a burial mound, east of Kazakhstan, in Central Asia. Animals from the steppes, gold ornaments, arrowheads, more than 3000 precious objects were extracted from a kurgan belonging to the Eastern Scy