The first DXCC Rules

The First DXCC rules (1937) From its simple beginnings, culminating in the announcement of the new DX award, The DX Century Club, in September 1937 QST (which was itself based on the "ARRL List of Countries" published in January 1937 QST), membership in the ARRL DX Century Club (DXCC) has been the mark of distinction among radio amateurs the world over. That it is regarded with such prestige by DXers is a testament to its integrity and level of achievement. The high standards of DXCC are intensely defended and supported by its membership. The rules established by the founders of DXCC were consistent with the art of Amateur Radio as it existed at the time. As technology improved the ability to communicate, the rules were progressively changed to maintain a competitive environment and complement the gaining popularity of DXCC. The Prewar DXCC In September issue of ,1937, QST (page 59) the First DXCC award was announced. A new "Club" -- the "DX" CENTURY CLUB with full specifications on qualifying. It is a form of special certification or recognition for outstanding DX men in our amateur ranks. The article noted: “When you have confirmed contacts with some 75 or more countries to your credit you "rate" and start working for the full 100 that constitutes the century mark and a certificate ! It is plenty hard to make the DX (Century Club) QST list. This will record progress between 75 and 100-or-more countries.” “Can you qualify?” Of course the new founded club had to have some rules for getting membership. On the pages 59-60 of the same issue of QST (September 1937) you could find the rules. Here is the article; Announcing: The DX Century Club The ARRL Communications Department announces a new DX award to be made to any operator who can submit satisfactory proof that his amateur station has been in communication with 100 or more different countries. The award will consist of an attractive certificate of membership in the ARRL "DX Century Club". It is further planned to list in QST each month the calls of all active amateurs who have worked 75 or more different countries and submitted proof of same to ARRL. As additional countries are contacted and confirmations received said confirmations may be then submitted and the total of countries worked will be changed in subsequent issues of QST. In this matter a standing record of proven accomplishment will be available for all amateurs working 75 or more different countries. When a station reaches the "100 countries" mark, it will automatically receive membership in the "Century Club" and the certificate will be made. An invitation is hereby extended to amateurs everywhere to join the "Century Club" and to submit proof of contact with 75 or more countries of th official QST list. If you can produce confirmations of QSO's with 75 or more countries, bundle them together and mail to the ARRL Communications Department, West harford, Conn., together with sufficient postage to guarantee their return to you. Your official "proven QSO record" will be listed in QST. If you hit the 100 mark, you 'll rate the "Century Club", a truly singular honor. Who will make the first listing of 75-or-more-countries-worked? The first list will appear in November QST. Check up on your DX now and if you find 75 or more countries represented, send in the confirmations right away. All we ask is that you adhere to the following rules: 1) All contact must be made with stations working in the authorized amateur bands using amateur calls. 2). All stations contacted must be "Land Stations" ... Contact with ships, anchored or otherwise, cannot be counted. 3). All stations must be contacted from the same call area, where are such areas exist, or from the same country where there are no call areas. 4). The A.R.R.L. list of countries (page 51, Jan. '37 QST) will be used in determining what constitutes a "country". 4A). In case of countries no longer in existence, credit will be allowed for these, if they were recognized as separate countries by A.R.R.L. at time of contact. 5). Confirmations must be submitted for all countries claimed; requests that DX contest and other contest logs be examined for confirmations will not be granted.. 6). Contacts may made over any period of years, and may have been made any number of years ago, provided only that all contacts be made from the same call area (or country, where no call areas exist) and by the same station licensee; contact may have been made under different call letters in the same area (or country), if the licensee for all was the same. 7). The Century Club award and QST listing for confirmed contacts with 75 or more countries is available to all active amateurs, everywhere in the world. 8). Following the first listing of any station in QST, confirmations from additional countries may be submitted as received, and the original listing will be changed in subsequent lists. 9). Stations reaching the 100-confirmations mark, will automatically be enrolled in the DX Century Club. 10). Sufficient postage for the return of confirmations must be forwarded with the application 11). Address all applications and confirmations to the Communications Department, A.R.R.L., 38 La Salle Road, West Harford, Conn. That's the dope!. Now let's see some applications. It is to be emphasized that this QST will be the only official confirmed list of countries worked in existence!. Every real DX man will want to be included. The first list will be in November QST. See that your call is there !!! Note Nice that you could get listed after sending in at least 75 different country-QSL’s to ARRL. A lot of hams, not able to send in 100 cards, did send 75 or more to get listed. Every card had to be checked for credit,. A lot of work for the ARRL staf.
Prewar DXCC
The prefix now (2017) belongs to China The famous DXCC award, for confirming of at least 100 countries They did also sent SWL cards in those early days.  Canal Zone became later K5 and later KZ5. And then getting deleted