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when he had sixteen years
when sixteen years were his age
at the age of sixteen
at age sixteen years old
During the nineteenth century, the mechanization of farming and the fencing of range land opened the agriculture heart of North America to intensive development. A the natural geographic center of this region, Chicago became the crossroads of the vast transportation network. The great Lakes were linked in Chicago in 1847, When the Illinois Michigan canal was opened to traffic---
new irrigation wterways were built
men who had been soldier provided a plentiful work force
the slaughtering of cattle turned much range land into farmland
the great Lakes were linked
Theeffects of civil war on the development of Chicago
The effects of intensive farming in north America
The evolution of Chicago as an industrial center
The impact of agriculture on industrial development
It was located in the middle of a production area
Its industries attracted jobless poeple
It could provide for a large local population
The local people were very rich
market for meat
breeding center
center for veterinary medicine
place for wealthy people
the outbreak of the civil war in the East
The increase of manufacturing activity
good opportunities for travel
the rich people living in the city
new rail road lines
innovative farm equipment
rising demand for manufacture of explosive
the largest system of inland waterways
Promotion
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