An abundance of natural resources including Salt and Gold minerals.
Answer:
A progressive social reformer and activist, Jane Addams was on the frontline of the settlement house movement in the late 19th and early 20th centuries. She later became internationally respected for the peace activism that ultimately won her a Nobel Peace Prize in 1931, the first American woman to receive this honor.
I did some research and the lowest range was 1,000,000 and the highest was 1,700,000. Its hard to estimate this because they didnt have the proper recording instruments we have today.
Sharecropping, agricultural depression, the widespread infestation of the boll weevil, and flooding also provided motives for African Americans to move into the Northern Cities. The lack of social opportunities from Jim Crow laws also motivated African Americans to migrate Northward.
The oldest recognizable signs of permanent human habitation and urbanization go back abut 12,500 years -- sites like Jericho<span> and </span>Göbekli Tepe<span> both show persistent communities who had the resources to build permanent structures and enough surplus food and labor to support specialists -- however both of those sites also show that hunting remained an important component of the community's way of life. There are certainly other examples of permanent settlements from this same period scattered around, particularly in the region of modern Syria, Turkey, Armenia and Iraq. </span>
