"There's the diver, Mrs. de Winter. See him putting on his helmet?"
Diving helmet (undated)
Public DomainDiving helmet (undated) - Credit: Julo

The development of maritime diving equipment and associated technology has been a lengthy and complex process.

The use of air tanks to support breathing under water was documented for the first time in the 15th century by Leonardo da Vinci,  the first diving suit was developed in France towards the beginning of the 18th century, and the first 'closed' diving helmet was invented in the 1830s.

Click here for detailed information.

Click here to see vintage diving helmets.

 

Diving helmet (undated)
Creative Commons AttributionDiving helmet (undated) - Credit: Steve Jurvetson