Answer:
The invention of the Bifocals was announced on May 23, 1785 by Benjamin Franklin!
To learn more about Benjamin Franklin and his bifocals, check out this article!
http://www.antiquespectacles.com/topics/franklin/franklin.htm
Answer:
The invention of the Bifocals was announced on May 23, 1785 by Benjamin Franklin!
To learn more about Benjamin Franklin and his bifocals, check out this article!
http://www.antiquespectacles.com/topics/franklin/franklin.htm