kateoplis:

First documented Dap greeting, from Tarzan Escapes, 1936 
Wiki: 

The term dap may have originated as an acronym for dignity and pride, or may have been backronymed. According to one tale, it was introduced to and popularly used by African-American soldiers by Marine Captain John Dapolito during the Vietnam War. It appears to have been introduced to Western culture through film.

kateoplis:

First documented Dap greeting, from Tarzan Escapes, 1936 

Wiki

The term dap may have originated as an acronym for dignity and pride, or may have been backronymed. According to one tale, it was introduced to and popularly used by African-American soldiers by Marine Captain John Dapolito during the Vietnam War. It appears to have been introduced to Western culture through film.

kateoplis:

Oregon or Bust, 1936

kateoplis:

Oregon or Bust, 1936