Inventions

It is without justification that money has been called one of the greatest inventions of man.

All inventions grow out of necessity.

During the 19th century, many inventions were developed.

Language is one of man's most important inventions.

In early times, inventions were often stumbled upon by accident.

With regard to big inventions, chance has played a very small part.

The discovery of electricity gave birth to an innumerable number of inventions.

The telephone is among the inventions attributed to Bell.

The telephone is among the inventions attributed to Alexander Graham Bell.

Inventions are born, so to speak, of necessity.