Richard Hennig (1874-1951) was a German student of ancient geography. He drew on the work of Adolf Schulten and Otto Jessen to support his conviction that the Scheria referred to by Homer was in fact Atlantis. Hennig drew up a list of similarities between the two but as N. Zhirov remarked, an equally long list of discrepancies could be compiled leaving the question still open.
In 1925, Hennig argued forcefully that Atlantis had controlled Cádiz in Spain where Tartessos was located. He claimed to have demonstrated that the Atlantean kingdom of Gadeirus controlled Atlantic Spain during pre-Classical times.
Hennig also saw similarities between Atlantis and Tartessos and believed that the Greeks of Plato’s era thought of Tartessos as having disappeared no more than a hundred years earlier. This idea would have placed the demise of Tartessos/Atlantis around 500 BC, in other words after Solon’s visit to Egypt!