According to the author, what has most contributed to the organization of wage earners?

The organization of wage earners has primarily been influenced by the impact of the Industrial Revolution. This period brought significant changes to manufacturing processes, leading to the rise of factories and the need for a large labor force. As people moved from rural areas to urban centers seeking work, they faced challenging conditions, long hours, and low wages.

These shifts created a commonality among workers, who began to recognize their collective struggles and the power that could come from organizing. Labor unions and movements emerged as a response to these conditions, aiming to improve wages, working conditions, and workers' rights. The Industrial Revolution thus played a pivotal role in fostering the consciousness among wage earners that led to their organization into unions and other collective groups to address shared grievances and advocate for better conditions.