Which Famous American Inventor Was Deaf And Invented The First Practical Telephone?

Which Famous American Inventor Was Deaf And Invented The First Practical Telephone?
Photo by Pawel Czerwinski / Unsplash

Did You Know!

Everyone with blue eyes are related.

Scientists in Copenhagen University have found that 6,000 to 10,000 years ago, everyone had brown eyes. Due to a sudden mutation of the OCA2 gene, blue eyes were formed! From this, they were able to conclude that all blue-eyed people are related to the same ancestor.