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by Jayaram V
| G.No |
No of persons per generation |
Birth Time |
Estimated World Population |
| 1 |
1 |
1970 |
3,912,000,000 |
| 2 |
2 |
1940 |
3,677,280,000 |
| 3 |
4 |
1910 |
3,456,643,200 |
| 4 |
8 |
1880 |
3,249,244,608 |
| 5 |
16 |
1850 |
3,054,289,932 |
| 6 |
32 |
1820 |
2,871,032,536 |
| 7 |
64 |
1790 |
2,698,770,583 |
| 8 |
128 |
1760 |
2,536,844,348 |
| 9 |
256 |
1730 |
2,384,633,688 |
| 10 |
512 |
1700 |
2,241,555,666 |
| 11 |
1,024 |
1670 |
2,107,062,326 |
| 12 |
2,048 |
1640 |
1,980,638,587 |
| 13 |
4,096 |
1610 |
1,861,800,272 |
| 14 |
8,192 |
1580 |
1,750,092,255 |
| 15 |
16,384 |
1550 |
1,645,086,720 |
| 16 |
32,768 |
1520 |
1,546,381,517 |
| 17 |
65,536 |
1490 |
1,453,598,626 |
| 18 |
131,072 |
1460 |
1,366,382,708 |
| 19 |
262,144 |
1430 |
1,284,399,746 |
| 20 |
524,288 |
1400 |
1,207,335,761 |
| 21 |
1,048,576 |
1370 |
1,134,895,615 |
| 22 |
2,097,152 |
1340 |
1,066,801,878 |
| 23 |
4,194,304 |
1310 |
1,002,793,766 |
| 24 |
8,388,608 |
1280 |
942,626,140 |
| 25 |
16,777,216 |
1250 |
886,068,571 |
| 26 |
33,554,432 |
1220 |
832,904,457 |
| 27 |
67,108,864 |
1190 |
782,930,190 |
| 28 |
134,217,728 |
1160 |
735,954,378 |
| 29 |
268,435,456 |
1130 |
691,797,116 |
| 30 |
536,870,912 |
1100 |
650,289,289 |
| 31 |
1,073,741,824 |
1070 |
611,271,931 |
| 32 |
2,147,483,648 |
1040 |
574,595,615 |
| 33 |
4,294,967,296 |
1010 |
540,119,879 |
| 34 |
8,589,934,592 |
980 |
507,712,686 |
| 35 |
17,179,869,184 |
950 |
477,249,925 |
| 36 |
34,359,738,368 |
920 |
448,614,929 |
| 37 |
68,719,476,736 |
890 |
421,698,033 |
| 38 |
137,438,953,472 |
860 |
396,396,151 |
| 39 |
274,877,906,944 |
830 |
372,612,382 |
| 40 |
549,755,813,888 |
800 |
350,255,639 |
| 41 |
1,099,511,627,776 |
770 |
329,240,301 |
| 42 |
2,199,023,255,552 |
740 |
309,485,883 |
| 43 |
4,398,046,511,104 |
710 |
290,916,730 |
| 44 |
8,796,093,022,208 |
680 |
273,461,726 |
| 45 |
17,592,186,044,416 |
650 |
257,054,023 |
| 46 |
35,184,372,088,832 |
620 |
241,630,781 |
| 47 |
70,368,744,177,664 |
590 |
227,132,934 |
| 48 |
140,737,488,355,328 |
560 |
213,504,958 |
| 49 |
281,474,976,710,656 |
530 |
200,694,661 |
| 50 |
562,949,953,421,312 |
500 |
190,000,000 |
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World population in 1970 as per UN statistics
Estimated world population count in 500 AD is as per the historical estimates of
McEvedy, Colin and Richard Jones. For historical estimates of world population, you may visit :
http://www.census.gov/ipc/www/worldhis.html
Estimated world population count from 500 AD to 1970 is based upon rough estimates. These figures should not be taken seriously for any academic exercise or research. They are presented here for comparison purposes only.
Underlying assumptions: 30 years for each generation based on the expectation that the average age difference between parents and chidlren would be 30 years and the average age difference between grandparents and their grandchildren would be 60 years
The years taken into account for each generation gap may vary. But irrespective how of old a parent or grandparent would be when a child is born, or how many centuries were involved, the calculations for the previous 50 generations would be the same for each and every individual, thereby proving the point that we all share some common ancestry at some point or the other in the history of mankind.
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