What was a major cause of migration to the cities at the turn of the century?

Explanation:

Back then, migration was a serious issue, because in the turn of the century there were several problems in different regions, like the South, after the Reconstruction era, African-American people was economically in disadvantages.

So, communities migrated to industrial cities, looking for better life. The effect of this situation was that farms were empty, majority of people migrated to industrial jobs.

i believe its the indians