F   O   R   U   M   W   A   R   Z
   6  15  18  21  13  23   1  18  26     - as numbers
   6   6   9   3   4   5   1   9   8     - digits added
  \_____/ \_____/ \_____/ \_____/ \_/
   3       3       9       1       8     - digits added

Thus, “Forumwarz” is 33918.

Turn the number backwards, and add 1904 – the year Oppenheimer, the man who created the atomic bomb, was born. The number is now 83837.

Subtract 6891 from the number – this is the year a postman in Okhlahoma gone postal, killing 14, written backwards. It gives 76946.

Add 1912, the year Titanic went for its first and last voyage – the result is 78858.

Subtract 9691 from the number – this is the year of Woodstock, written backwards. It gives 69167.

Divide by 7, the sacred number of Illuminati – the result is 9881.

This number, read from right to left, is 1889, or the year Adolf Hitler was born.

No further questions. QED.