Explanation:: a period of before written history was present. Generally the time on earth before people existed or developed any form of civilized life.
# Remaining Guess: 5
_ _ _ _ _ _ _ O_ _
Choose A Letter:
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