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Petty, William, Sir, 1623-1687

"Essays on Mankind and Political Arithmetic"

For which purpose I have digressed from my intended
purpose to insert this matter, intending to prosecute this hint
further upon some more proper occasion.

A TABLE SHOWING HOW THE PEOPLE MIGHT HAVE DOUBLED IN THE SEVERAL
AGES OF THE WORLD.
A.D., after the Flood.
Periods of { 1 8 persons.
doubling { 10 16
{ 20 32
{ 30 64
{ 40 128
In 10 years { 50 256
{ 60 512
{ 70 1,024
{ 80 2,048
{ 90 4,096
{ 100 8,000 and more.
{ 120 years after
In 20 years { the Flood. 16,000
{ 140 32,000
{ 170 64,000
30 {
{ 200 128,000
40 240 256,000
50 290 512,000
60 350 1,000,000 and more.
70 420 2,000,000
100 520 4,000,000
190 710 8,000,000
290 1,000 16,000,000 in Moses' time.


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