Works Consulted

A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
V
W
X
Y
Z






Eratosthenes of Cyrene (c. 276 BCE "“ c. 195 BCE) was the chief librarian at the Library of Alexandria and the inventor of geography as a discipline. His most important contribution to science was calculating the circumference of the Earth to within 2% accuracy. Although Christopher Columbus (1451-1506) consulted Eratosthenes before leaving Spain for India, he believed that the Earth's circumference was considerably smaller than it is.

Photo Credit: Nordisk familjebok, 1907.