TheCodeBreakers
point on. In 1819, William Blair, in a superb encyclopedia article
abcdefghiJklmnopqrstuvwxyz
A ABCDEFGHIJKLMNOPQRSTUVWXYZ
B BCDEFGHIJKLMNOPQRSTUVWXYZA
C CDEFGHIJKLMNOPQRSTUVWXYZAB
D DEFGHIJKLMNOPQRSTUVWXYZABC
E EFGHIJKLMNOPQRSTUVWXYZABCD
P FGHIJKLMNOPQRSTUVWXYZABCDE
Q GHIJKLMNOPQRSTUVWXYZABCDEF
H HIJKLMNOPQBSTUVWXYZABCDEFQ
I IJKLMNOPQHSTUVWXYZABCDEFGH
J JKLMNOPQBSTUVWXYZABCDEFGHI
K KLMNOPQBSTUVWXYZABCDEFGHIJ
L LMNOPQRSTUVWXYZABCDEFGHIJK
M MNOPQRSTUVWXYZABCDEFGHIJKL
N NOPQRSTTUVWXYZABCBEFGHIJKLM
O OPQRSTUVWXYZABCDEFGHIJKLMN
P PQBSTUVWXYZABCDEFGHIJKLMNO
Q QRSTUVWXYZABCDEFGHIJKLMNOP
R BSTUVWXYZABCDEFGHIJKLMNOPQ
S STUVWXYZABCDEFGHIJKLMNOPQB
T TUVWXYZABCDEFGHIJKILMNOPQK
U UVWXYZABCDEFGHIJKLMNOPQRST
V VWXYZABCDEFGHIJKLMNOPQRSTU
W WXYZABCDEFGHIJKLMNOPQBSTUV
X XYZABCDEFGHIJKLMNOPQRSTUVW
Y YZABCDEFGHIJKLMNOPQBSTUVWX